PLEASE HURYYY RIGHT NOW

PLEASE HURYYY RIGHT NOW

Answers

Answer 1

Answer:

Only Julia's Question.

Step-by-step explanation:

Julia: 8÷[tex]\frac{1}{4}[/tex]

Tanveer: 8*1/4


Related Questions

the difference of x and 5 is at least -25

Answers

Answer: x - 5 is less than or equal to -25

Step-by-step explanation:

f(x)= 0.6x5-2x4+8x Describe the end behaviour of the polynomial function








Answers

Step-by-step explanation:

if I understand your typing correctly, and there is nothing missing, we have

f(x) = 0.6x⁵ - 2x⁴ + 8x

the "end behavior" means the general tendency of the result values for very large or very low values of x (going to +infinity and -infinity).

the higher (or lower in the negative direction) x gets, the more the highest exponent will dominate the result values.

it does not matter, that it has a diminishing factor (or coefficient) like 0.6.

the much stronger progression of x⁵ vs. smaller exponents like x⁴ or x will easily compensate for that with sufficiently large x.

so, ultimately, the term with the highest exponent (in our case 0.6x⁵) defines the end behavior.

with x going to +infinity, so does the function result (+infinity).

with x going to -infinity, so does the function result (-infinity, because an odd exponent number like 5 will maintain the sign of the argument).

Find the slope of the graph using points 1,2 and 5,10

Answers

(y^2 - y^1)/ (x^2 - x^1) = slope

10-2 / 5-1 = 8/4 = 2

The slope of the line is 2

Answer:

2

Step-by-step explanation:

The slope of a line is defined by the formula:

[tex]m=\dfrac{\Delta \, y}{\Delta \, x} = \dfrac{y_2 - y_1}{x_2 - x_1}[/tex]

In this problem, we are given two points in the form [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex].

So, we can define the x's and y's as:

[tex]x_1 = 1[/tex], [tex]y_1 = 2[/tex], [tex]x_2 = 5[/tex], [tex]y_2 = 10[/tex].

Hence, the slope of the line can be solved for.

[tex]m = \dfrac{10-2}{5-1}[/tex]

[tex]m = \dfrac{8}{4}[/tex]

[tex]m = 2[/tex]

The slope of the line with points (1, 2) and (5, 10) is 2.

Illustrative Mathematics

An albatross is a large bird that can fly 400 kilometers in 8 hours at a constant speed. Using for distance in kilometers and for number of hours, an equation that represents this situation is .

What are two constants of proportionality for the relationship between distance in kilometers and number of hours? What is the relationship between these two values?

Write another equation that relates and in this context.

Answers

1. Two constants of proportionality representing the proportional relationship between distance in kilometers and number of hours are 400 km and 8 hours.

2. The relationship (ratio) between the two values is 50 km per hour or the equation, d = 50t.

3. Another equation that relates distance and time in this context is t = d/50 or 400/50.

What is the constant of proportionality?

The constant of proportionality is the ratio relating two given values in a proportional relationship.

Other names for the constant of proportionality include:

Constant rateUnit rateConstant ratioRate of changeConstant of variation.

Distance, d = 400 km

Constant speed, t = 8 hours

d = 400/8

d = 50t

Constant of proportionality = 50.

t = d/s

Where d, distance = 400 km and s, speed = 50 km/h

= 400/50

= 8 hours

Learn more about the constant of proportionality at https://brainly.com/question/10159347

#SPJ1

Jack is 2 years older than Bob. What was the difference between their ages one year ago?
Need Help ASAP!

Answers

The difference between their ages one year ago was 2 years.

What is difference?

Difference in maths, the result of one of the important mathematical operations, which is obtained by subtracting two numbers.

Given that, Jack is 2 years older than Bob,

Let Bob's age be x then, Jack's age will be (x+2)

Their ages before 1 year was =

Bob's = x-1

Jack's = (x+1)

Difference = x + 1 - x + 1 = 2

Hence, The difference between their ages one year ago was 2 years.

For more references on differences, click;

https://brainly.com/question/2432925

#SPJ1

point r is located at (-5,-2), Point T is located at (2,5) the ratio of RS/ST is 2/5 Plot point S on RT to make the ratio true

Answers

The point S of line segment RT such that RS / ST = 2 / 5 is equal to (- 3, 0).

How to determine the coordinates of the point within a line point

Herein we find a line segment whose endpoints are known (R(x, y) = (- 5, - 2), T(x, y) = (2, 5)) and in which we must determine the coordinates of a point S within line segment RT such that the partition ratio is observed:

RS / ST = 2 / 5

[tex]\overrightarrow{RS} = \frac{2}{5} \cdot \overrightarrow {ST}[/tex]

S(x, y) - R(x, y) = (2 / 5) · [T(x, y) - S(x, y)]

(7 / 5) · S(x, y) = (2 / 5) · T(x, y) + R(x, y)

S(x, y) = (2 / 7) · T(x, y) + (5 / 7) · R(x, y)

Now we determine the location of point S:

S(x, y) = (2 / 7) · (2, 5) + (5 / 7) · (- 5, - 2)

S(x, y) = (4 / 7, 10 / 7) + (- 25 / 7, - 10 / 7)

S(x, y) = (- 21 / 7, 0)

S(x, y) = (- 3, 0)

The location of point S is (- 3, 0). A representation of the geometric system is shown in the image attached below.

To learn more on partitioning line segments: https://brainly.com/question/20411716

#SPJ1

when he shoots a free throw he makes a basket 20% of the time Jai shoots 120 free throws in Use benchmarkercents of 1% and 10% to help you determine the answer​

Answers

Benchmark percentage of 1% = 9.6 & 10% = 24.

What is Free Throw Percentage?

Free throw percentage (FT%) puts a player’s successful free throws in perspective to their total attempts.

In basketball, a free throw (or foul shot) is awarded to a player who has been fouled by the other team. The number of free throws depends on where on the court the player was while being fouled.

To find 1% of a number, we can move the decimal point of the number two places to the left.

Therefore, 1% of 120 is 1.2

To find 10% of a number, we can move the decimal point of the number one place to the left.

Therefore, 10% of 120 is 12

Since 10% of 120 is 12 and

20% = 2 x 10%

then 20% of 120 = 2 x 10% of 120

= 2 x 12 = 24

Since 1% of 120 is 1.2 and

8% = 8 x 1%

then 8% of 120 = 8 x 1%  of 120

= 8 x 1.2 = 9.6

Hence the answer is, Benchmark percentage of 1% = 9.6 & 10% = 24.

To learn more about benchmark percentages click here https://brainly.com/question/1201714

#SPJ9

Which figure is shaded to represent an equivalent fraction?

Answers

Answer: the one on the top left corner

Answer: the third one (bottom left) but also the second one (top right)

Step-by-step explanation: 2. there are 8 total parts to the figure and four of those parts are shaded. 4/8

3. There are four total parts to the figure but only 2 are shaded. 2/4

2/4 and 4/8 are both EQUIVALENT to 1/2. Therefore, that is the correct answer.

Customer: "If I purchase this product for $79.99 and two accessories for $9.99 and $7.00, how much would I owe after the 8.75% tax is applied?"
Employee: "Your total would be __________."

Answers

The answer is $105.46

Michelle is selling blueberries and raspberries at a farmers' market. She makes $1.75 for each pint (pt) of blueberries she sells and $2.40 for each pint of raspberries. At the end of the day, she has made exactly $116.65 by selling a total of 57 pt of fruit.
How many pints of blueberries did she sell?

Answers

The number of the blueberries is 31.

How many pints of blueberries did she sell?

In this case,  the only way that we can be able to obtain the number of the pints of the blueberries that she sold is by the use of a simultaneous equation.

Let the number of  the blueberries be x and the number of the raspberries be y.

We have

x + y = 57 ------ (1)

1.75x + 2.40y = 116.65 ------- (2)

x = 57 - y ------ (3)

Then we have;

1.75(57 - y) + 2.40y = 116.65

99.75 - 1.75y + 2.40y = 116.65

Collecting like terms;

- 1.75y + 2.40y = 116.65 - 99.75

0.65y = 16.9

y = 16.9/0.65

y = 26

To obtain the number of blueberries

x + 26 = 57

x = 57 - 26

x = 31

Learn more about simultaneous equations:https://brainly.com/question/16763389

#SPJ1

Sample space(3,4,5,6,7,8,9,10,11,12,13,14) event F(6,7,8,9,10) event G(10,11,12,13) outcomes are equally likely find P(ForG)

Answers

The probability of the sets P(F or G) is; P(F or G)  = 0.67

How to Interpret Union of sets?

We are given the following;

Sample Space; S = {3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}

Set F = {6, 7, 8, 9, 10}

Set G = {10, 11, 12, 13}

Now, F or G, simple means; F ∪ G

Thus;

F or G = {6, 7, 8, 9, 10, 11, 12, 13}

Number of terms is (F or G) = 8

Number of terms is Sample space = 12

Thus;

P(F or G) = 8/12 = 2/3 = 0.67

Read more about Union of sets at; https://brainly.com/question/20561161

#SPJ1

Translate the phrase into a math expression. Twelve more than the quotient of six divided by three. Responses (6÷3)+12 eft parenthesis 6 divided by 3 right parenthesis plus 12 6÷(3+12) 6 divided by left parenthesis 3 plus 12 right parenthesis (3÷6)+12 left parenthesis 3 divided by 6 right parenthesis plus 12 3÷(6+12) 3 divided by left parenthesis 6 plus 12 right parenthesis

Answers

The given phrase on translation to math expression is (6 ÷ 3) + 12 , the correct option is (a) .

In the question ,

an mathematical phrase is given , that is "Twelve more than the quotient of six divided by three" .

we have to translate it into mathematical expression ,

So , the term quotient of six divided by three is written as 6 ÷ 3 .

and phrase " more " is represented by " + " ,

Hence the given phrase,  "Twelve more than the quotient of six divided by three" is  (6 ÷ 3) [tex]+[/tex] 12 .

Therefore , The given phrase on translation to math expression is (6 ÷ 3) + 12 , the correct option is (a) .

The given question is incomplete , the complete question is

Translate the phrase into a math expression , "Twelve more than the quotient of six divided by three" .

(a) (6÷3)+12

(b) 6÷(3+12)

(c) (3÷6)+12

(d) 3÷(6+12)

Learn more about Expressions here

https://brainly.com/question/7360128

#SPJ1

if the ( n+4)th terms of an A.P is 4n + 17 then find a. S10 b. An +1 c. Sn d. An​

Answers

The measures of the arithmetic sequence are given as follows:

a. [tex]S_{10} = 350[/tex]

b. [tex]A_{n + 1} = 17 + 4n[/tex]

c. [tex]S_n = \frac{n(30 + 4n)}{2}[/tex]

d. [tex]A_n = 17 + 4(n - 1)[/tex]

What is an arithmetic sequence?

An arithmetic sequence is a sequence of values in which the difference between consecutive terms is constant and is called common difference d.

The nth term of an arithmetic sequence is given by the rule shown below:

[tex]a_n = a_1 + (n - 1)d[/tex]

In which [tex]a_1[/tex] is the first term of the sequence.

The sum of the first n terms is given by the rule shown below:

[tex]S_n = \frac{n(a_1 + a_n)}{2}[/tex]

The equation given for this problem is:

[tex]a_{n + 4} = 4n + 17[/tex]

Hence the sequence can be written as follows:

17, 21, 25, 29, 33.

Then the first term and the common ratio are given as follows:

[tex]a_1 = 17, d = 4[/tex]

Then the nth term is of:

[tex]A_n = 17 + 4(n - 1)[/tex]

The (n + 1)th term is of:

[tex]A_{n + 1} = 17 + 4(n + 1 - 1)[/tex]

[tex]A_{n + 1} = 17 + 4n[/tex]

The sum of the first n terms is of:

[tex]S_n = \frac{n(a_1 + a_n)}{2}[/tex]

[tex]S_n = \frac{n(17 + 17 + 4(n - 1))}{2}[/tex]

[tex]S_n = \frac{n(30 + 4n)}{2}[/tex]

The sum of the first ten terms is of:

[tex]S_{10} = \frac{10(30 + 4(10))}{2} = 350[/tex]

More can be learned about arithmetic sequences at https://brainly.com/question/6561461

#SPJ1

Drag drop the core in order from least to greatest on the number line -10 1 -31/3 0 8 1/4 9/8 -9/8

Answers

An arrangement of the order the numbers would appear on a number line from least to greatest is: -31/3, -10, -9/8, 0, 1, 1/4, 9/8, 8.

What is a number line?

In Mathematics, a number line can be defined as a type of graph with a graduated straight line which is composed of both positive and negative numbers that are placed at equal intervals along its length.

Generally speaking, a number line typically increases in numerical value towards the right from zero (0) and decreases in numerical value towards the left from zero (0).

In order to arrange the given numbers in order from least to greatest, we would convert them into a decimal number as follows:

-31/3 = -10.33 -10 = -10.0-9/8 = -1.12501/4 = 0.251 = 1.09/8 = 1.1258 = 8.0

Read more on number line here: brainly.com/question/28032137

#SPJ1

Two angles in triangle PQR are congruent, ∠P and ∠Q; ∠R measures 26.35°. What is the measure of ∠P?

Answers

The required measure of ∠P would be 76.825° in the given triangle PQR.

Given that two angles in triangle PQR are congruent, ∠P and ∠Q;

∠R measures 26.35°.

Let the measure of ∠P would be x

∠P = x = ∠Q

We know that the sum of interior angles is always 180 degrees in the triangle.

⇒ ∠P + ∠Q + ∠R = 180°

⇒ x + x  + 26.35° = 180°

⇒ 2x  + 26.35° = 180°

⇒ 2x = 180° - 26.35°

⇒ 2x = 153.65

⇒ x = 153.65/2

⇒ x = 76.825°.

Therefore, the required measure of ∠P would be 76.825° in the given triangle PQR.

Learn more about the triangles here:

https://brainly.com/question/17997149

#SPJ1

Find the fourth proportional of 5, 2, and 10.​

Answers

Any of the four terms of a discrete geometric proportion is called a proportional fourth.

[tex]\bold{5, 2 \: and \: 10.5}[/tex]

A geometric proportion is formed as follows:

[tex]\bold{5 : 2 :: 10 : x}[/tex]

Since the unknown term is an extreme and as we have seen before, one extreme is equal to the means divided by the other extreme, we will have:

[tex]\boxed{\bold{ \: x = \frac{2 \:∗ \: 10}{5} = 4} }[/tex]

Therefore, the geometric proportion is:

[tex]\bold{5 : 2 :: \: :: 10 :4}[/tex]

Describe the features of the function that can be easily seen when a quadratic function is given
in the form: y=ax^2+Bx+C and how they can be identified from the equation. How can this
form be used to find the other features of the graph?
Please help

Answers

When a quadratic equation is given in the form y = ax^2 + Bx + C the easily seen features are

the opening of the curve in the axis - open upwardthe x - coordinate of the vertex, v(h, k) h = -b/2a the axis of the parabola - y axisthe discriminant given by (b² - 4ac)

How this form can be used to find other features

Equation of a parabola is the equation used to trace the path of a parabola. this equation is a quadratic equation

The formula for the roots of the quadratic equation is derived from the equation of the form y = ax^2 + Bx + C to be

-b ± √{(b² - 4ac)2a)

the y intercepts is gotten by equating x = 0

The axis of symmetry refers to the axis where the parabolic curve can be bisected. this is in the y axis

"a" shows if the curve opens upwards or downwards.

negative means the parabola opens downwardspositive the parabola opens upwards

Learn more about other forms of quadratic equation here:

brainly.com/question/29339843

#SPJ1

Given f(x) = 2x^2 - 4x - 4, find the equation of the tangent line of f at the point
where x = -3.

Answers

The equation of the tangent line of f at the point x = -3 will be y = -16x-48.

According to the question,

We have the following information:

f(x) = [tex]2x^{2} -4x-4[/tex]

Now, we will first find the derivation of this function with respect to x:

Let's take its derivation to be f'(x).

f'(x) = 4x-4

Now, finding the slope of the equation when x = -3:

f'(-3) = 4*(-3)-4

f'(-3) = -12-4

f(-3) = -16

Now, we know that following formula is used to find the equation of a line:

(y-y') = m(x-x')

y-0 = -16{x-(-3)}

y = -16(x+3)

y = -16x-48

Hence, the equation of the tangent line of f at the point x = -3 will be y = -16x-48.

To know more about equation of the tangent line here

https://brainly.com/question/26704591

#SPJ1

Find sin x/2, cos x/2, tan x/2. from the given information. tan x = [tex]\sqrt{2}[/tex]. 0° < x < 90°

Answers

The trigonometric measures for the given angle are as follows:

[tex]\sin{\left(\frac{x}{2}\right)} = \sqrt{\frac{3 - \sqrt{3}}{6}}[/tex][tex]\cos{\left(\frac{x}{2}\right)} = \sqrt{\frac{3 + \sqrt{3}}{6}}[/tex][tex]\tan{\left(\frac{x}{2}\right)} = \sqrt{\frac{3 - \sqrt{3}}{3 + \sqrt{3}}}[/tex]

How to obtain the trigonometric measures?

We are given the measure of the sine for the angle and we need to find the three measures, sine, cosine and tangent for half the angle.

These measures are dependent on the cosine of the function, hence we apply the definition of the tangent as follows:

[tex]\tan{x} = \frac{\sin{x}}{\cos{x}}[/tex]

Hence:

[tex]\sqrt{2} = \frac{\sin{x}}{\cos{x}}[/tex]

[tex]\sin{x} = \sqrt{2}\cos{x}[/tex]

The exact value of the cosine can be found applying the identity as follows:

sin²(x) + cos²(x) = 1.

Then, from the equation of the sine as a function of the cosine from the tangent relation, we have that:

[tex](\sqrt{2}\cos{x})^2 + \cos^2{x} = 1[/tex]

[tex]2^\cos^2{x} + \cos^2{x} = 1[/tex]

[tex]\cos^2{x} = \frac{1}{3}[/tex]

[tex]\cos{x} = \pm \sqrt{\frac{1}{3}}[/tex]

The angle is of the first quadrant, as 0° < x < 90°, hence the cosine is positive, thus:

[tex]\cos{x} = \frac{1}{\sqrt{3}} \times \frac{\sqrt{3}}{\sqrt{3}} = \frac{\sqrt{3}}{3}[/tex]

The identity that gives the sine for half the angle is:

[tex]\sin{\left(\frac{x}{2}\right)} = \sqrt{\frac{1 - \cos{x}}{2}}[/tex]

Hence:

[tex]\sin{\left(\frac{x}{2}\right)} = \sqrt{\frac{1 - \frac{\sqrt{3}}{3}}{2}}[/tex]

[tex]\sin{\left(\frac{x}{2}\right)} = \sqrt{\frac{3 - \sqrt{3}}{6}}[/tex]

The identity for the cosine is almost the same, just there is a plus instead of a minus, hence:

[tex]\cos{\left(\frac{x}{2}\right)} = \sqrt{\frac{1 + \cos{x}}{2}}[/tex]

[tex]\cos{\left(\frac{x}{2}\right)} = \sqrt{\frac{1 + \frac{\sqrt{3}}{3}}{2}}[/tex]

[tex]\cos{\left(\frac{x}{2}\right)} = \sqrt{\frac{3 + \sqrt{3}}{6}}[/tex]

The tangent is the sine divided by the cosine, hence the inserting the entire division and the same square root and simplify the common denominator, thus:

[tex]\tan{\left(\frac{x}{2}\right)} = \sqrt{\frac{3 - \sqrt{3}}{3 + \sqrt{3}}}[/tex]

More can be learned about trigonometric measures at brainly.com/question/24349828

#SPJ1

What are the coordinates of point (1, 5) after dilating by 1/3 about (4,2)?
(2, 1)
(-1,-5)
(3, 2)
(3, 3)

Answers

The coordinates of point (1,5) after dilation is (3,3). Therefore, 4th option is correct.

It is given to us that -

The coordinates of the original point is (1,5)

=> [tex](x_{o},y_{o} )=(1,5)[/tex] ---- (1)

The dilating factor is 1/3

=> [tex]s=\frac{1}{3}[/tex] (say) ---- (2)

And, the center of dilation is at the point (4,2)

=> [tex](x_{cod},y_{cod})=(4,2)[/tex] ---- (3)

We have to find out the coordinates of point (1,5) after dilation.

Using the formula for dilation coordinates from original to image, we have

[tex][(x_{cod}+s(x_{o}-x_{cod}),y_{cod}+s(y_{o}-y_{cod})]\\=[4+\frac{1}{3}(1-4),2+\frac{1}{3}(5-2)]\\=[(4-1),(2+1)]\\=(3,3)[/tex]

Thus, the coordinates of point (1,5) after dilation is (3,3). Therefore, 4th option is correct.

To learn more about dilation visit

https://brainly.com/question/13176891

#SPJ1

Determine the vertex of the graph of the following parabola. f(x)=−(x−2)2−3

Answers

The vertex of the Parabola is (2, -3)

What is a vertex?

The vertex of a parabola is the point where the parabola crosses its axis of symmetry.  If the coefficient of the x2 term is positive, the vertex will be the lowest point on the graph, the point at the bottom of the “ U ”-shape.  If the coefficient of the x2 term is negative, the vertex will be the highest point on the graph, the point at the top of the “ U ”-shape.

From  the function f(x) =[tex]-(x-2)^{2}[/tex] - 3

The equation of parabola in vertex form is

y=[tex]a(x-h)^{2}[/tex]+k

where h and k are the coordinates of the vertex

comparing the two equations

h = 2, k = -3

The coordinates of the vertex is (2, -3)

In conclusion, the vertex is (2, -3).

Learn more about vertex: https://brainly.com/question/525947

#SPJ1

Please help me I am a poor person and I’m not able for a reason but please

Answers

Answer:

d /c

Step-by-step explanation:

if its rotated at an 270 angle then its d or c cause they are the same

x³ ÷ 3 = y; use x = 3, and y = 1

Answers

Step-by-step explanation:

If x = 3 :

x³ ÷ 3 = y

3³ ÷ 3 = y

27 ÷ 3 = y

y = 27 ÷ 3 = 9

NO LINKS!! Please help me with this problem. Find a formula that expresses the fact that an arbitrary point P(x, y) is on the perpendicular bisector l of segment AB.​

Answers

Given points

A(-5, 4), B(9, - 6)

Find the midpoint of AB

M = ((- 5 + 9)/2, (4 - 6)/2) = (2, -1)

Find the slope of AB

m = (-6 - 4)/(9 + 5) = - 10 / 14 = - 5/7

The point P is on the perpendicular line to AB that passes through its midpoint.

We know perpendicular lines have opposite-reciprocal slopes.

So the line we are looking for has a slope of 7/5.

Use the point-slope equation to find the line:

y - y₁ = m(x - x₁)y - (-1) = 7/5(x - 2)y + 1 = 7/5(x - 2)                    Point- slope formy = 7/5x - 19/5                        Slope- intercept form5y = 7x - 197x - 5y = 19                             Standard form

Choose any form above of the same line.

Answer:

[tex]\textsf{Slope-intercept form}: \quad y=\dfrac{7}{5}x-\dfrac{19}{5}[/tex]

[tex]\textsf{Standard form}: \quad 7x-5y=19[/tex]

Step-by-step explanation:

A perpendicular bisector is a line that intersects another line segment at 90°, dividing it into two equal parts.

To find the perpendicular bisector of segment AB, find the slope of AB and the midpoint of AB.

Define the points:

Let (x₁, y₁) = A(-5, 4)Let (x₂, y₂) = B(9, -6)

Slope of AB

[tex]\textsf{slope}\:(m)=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{-6-4}{9-(-5)}=\dfrac{-10}{14}=-\dfrac{5}{7}[/tex]

Midpoint of AB

[tex]\textsf{Midpoint}=\left(\dfrac{x_2+x_1}{2},\dfrac{y_2+y_1}{2}\right)=\left(\dfrac{9+(-5)}{2},\dfrac{-6+4}{2}\right)=(2,-1)[/tex]

If two lines are perpendicular to each other, their slopes are negative reciprocals.

Therefore, the slope of the line that is perpendicular to line segment AB is ⁷/₅.

Substitute the found perpendicular slope and the midpoint of AB into the point-slope formula to create an equation for the line that is the perpendicular bisector of line segment AB:

[tex]\implies y-y_1=m(x-x_1)[/tex]

[tex]\implies y-(-1)=\dfrac{7}{5}(x-2)[/tex]

[tex]\implies y+1=\dfrac{7}{5}x-\dfrac{14}{5}[/tex]

[tex]\implies y=\dfrac{7}{5}x-\dfrac{14}{5}-1[/tex]

[tex]\implies y=\dfrac{7}{5}x-\dfrac{19}{5}[/tex]

Therefore, the formula that expresses the fact that an arbitrary point P(x, y) is on the perpendicular bisector of segment AB is:

[tex]\textsf{Slope-intercept form}: \quad y=\dfrac{7}{5}x-\dfrac{19}{5}[/tex]

[tex]\textsf{Standard form}: \quad 7x-5y=19[/tex]

18. A random sample of n = 16 scores is obtained from a
population with a mean of μ = 45. After a treatment
is administered to the individuals in the sample, the
sample mean is found to be M = 49.2.
a. Assuming that the sample standard deviation is
s = 8, computer and the estimated Cohen's d to
measure the size of the treatment effect.
b. Assuming that the sample standard deviation is
s = 20, computer and the estimated Cohen's d to
measure the size of the treatment effect.
c. Comparing your answers from parts a and b, how
does the variability of the scores in the sample
influence the measures of effect size?

Answers

Through reporting statistical results, we found that  [tex]r^{2}[/tex] is 0.22 and Cohen's [tex]d[/tex] is 0.52 when s = 8, and  [tex]r^{2}[/tex] is 0.04 and Cohen's [tex]d[/tex] is 0.21 when s = 20. It is also observed that when the variability of the scores in the sample, [tex]r^{2}[/tex] decreases, there is simultaneous decrease in the measures of effect size, Cohen's [tex]d[/tex] as well.

It is given to us that -

A random sample of n = 16 scores

Population with a mean of μ = 45

Sample mean is found to be M = 49.2

In Reporting Statistical results, there are two different effect sizes, namely eta-squared [tex]r^{2}[/tex] and Cohen's [tex]d[/tex].

Eta-square, [tex]r^{2} = \frac{t^{2} }{t^{2}+df }[/tex]

where, [tex]df = n-1[/tex]

[tex]SEM = \frac{s}{\sqrt{n} }[/tex]

and, [tex]t=\frac{x_{2} -x_{1} }{SEM}[/tex]

Cohen's [tex]d=\frac{x_{2} -x_{1} }{s}[/tex]

a) Given that the sample standard deviation is s=8

We have n = 16

So, [tex]df = n-1 = 16-1 = 15[/tex]

[tex]SEM = \frac{s}{\sqrt{n} } = \frac{8}{\sqrt{16} } = \frac{8}{4} = 2[/tex]

We also have μ = 45 and M = 49.2. This implies

[tex]t=\frac{x_{2} -x_{1} }{SEM} = \frac{49.2-45}{2} = \frac{4.2}{2} =2.1[/tex]

Now,

[tex]r^{2} = \frac{t^{2} }{t^{2}+df } = \frac{(2.1)^{2} }{(2.1)^{2}+ 15 }= \frac{4.41}{4.41+15} \\= \frac{4.41}{19.41} = 0.22[/tex]

Cohen's [tex]d=\frac{x_{2} -x_{1} }{s} = \frac{49.2-45}{8} = \frac{4.2}{8} = 0.52[/tex]

b) Given that the sample standard deviation is s=20

We have n = 16

So, [tex]df = n-1 = 16-1 = 15[/tex]

[tex]SEM = \frac{s}{\sqrt{n} } = \frac{20}{\sqrt{16} } = \frac{20}{4} = 5[/tex]

We also have μ = 45 and M = 49.2. This implies

[tex]t=\frac{x_{2} -x_{1} }{SEM} = \frac{49.2-45}{5} = \frac{4.2}{5} =0.84[/tex]

Now,

[tex]r^{2} = \frac{t^{2} }{t^{2}+df } = \frac{(0.84)^{2} }{(0.84)^{2}+ 15 }= \frac{0.706}{0.706+15} \\= \frac{0.706}{15.706} = 0.04[/tex]

Cohen's [tex]d=\frac{x_{2} -x_{1} }{s} = \frac{49.2-45}{20} = \frac{4.2}{20} = 0.21[/tex]

c) Comparing a and b, we see that the variability of the scores in the sample, [tex]r^{2}[/tex] is 0.22 when s = 8 and [tex]r^{2}[/tex] is 0.04 when s = 20. Similarly, Cohen's [tex]d[/tex] is 0.52 when s = 8 and [tex]d[/tex] is 0.21 when s = 20.

Thus, we can see that when the variability of the scores in the sample, [tex]r^{2}[/tex] decreases, there is simultaneous decrease in the measures of effect size, Cohen's [tex]d[/tex] as well.

Therefore, through reporting statistical results, we found that  [tex]r^{2}[/tex] is 0.22 and Cohen's [tex]d[/tex] is 0.52 when s = 8, and  [tex]r^{2}[/tex] is 0.04 and Cohen's [tex]d[/tex] is 0.21 when s = 20. It is also observed that when the variability of the scores in the sample, [tex]r^{2}[/tex] decreases, there is simultaneous decrease in the measures of effect size, Cohen's [tex]d[/tex] as well.

To learn more about Cohen's visit https://brainly.com/question/19281754

#SPJ1

If a=-5xa=−5x and b=3x-4ib=3x−4i, then find the value of the a^{3}ba
3
b in fully simplified form.

Answers

The value of expression a³b will be;

⇒ - 75x⁴ + 100x³i

What is substitution method?

To find the value of any one of the variables from one equation in terms of the other variable is called the substitution method.

Given that;

The expression is,

⇒ a³b

The values are;

a = - 5x

b = 3x - 4i

Now,

Substitute the value of a and b, we get;

The expression is,

⇒ a³b

⇒ (-5x)³ × (3x - 4i)

⇒ - 25x³ (3x - 4i)

⇒ - 75x⁴ + 100x³i

Thus, The value of expression a³b will be;

⇒ - 75x⁴ + 100x³i

Learn more about the substitution method visit:

https://brainly.com/question/26094713

#SPJ1

Which equation defines the distance, d, between points (-3,3) and
(a,b)? Select all that apply.
d=√(a-3)² + (b+3)²
d √(-3-a)² + (3 — b)²
d=√(a+b)² + (−3 − 3)²
d=√(a+3)² + (b − 3)²
-

Answers

The distance is d = √(-3 - a)² + (3 - b)²

What is Distance between two points ?

Distance between two points is the length of the line segment that connects the two points in a plane.

The formula is d =√(x₁ - x₂)² + (y₁ - y₂)²

Points are (-3, 3) and (a, b)

We know, the distance formula is

d =√(x₁ - x₂)² + (y₁ - y₂)²

Let, (x₁, y₁) = (-3, 3)

(x₂,  y₂) = (a, b)

Now, plug in the values in given formula

d = √(-3 - a)² + (3 - b)²

Hence, the distance is d = √(-3 - a)² + (3 - b)²

To read more about Distance between two points.

https://brainly.com/question/7243416

#SPJ9

The population of a specific species of nocturnal mammal is decreasing at a rate of 3.5%/year. The graph models the number of mammals x years after they were originally counted.

Identify and interpret the key features of the exponential function modeled in terms of this situation.

Select each correct answer.

The y-intercept represents the number of mammals when they were originally counted.

The line y = 0 is an asymptote of the graph.

The y-intercept.is 75.

The y-intercept is 120.

The asymptote indicates that the number of mammals counted when the study began was 120.

The asymptote indicates that as years pass, the number of mammals will approach 0.

The line x = 0 is an asymptote of the graph.

Answers

Answer:

The y-intercept represents the number of mammals when they were originally counted.

The line y = 0 is an asymptote of the graph.

The y-intercept is 120.

The asymptote indicates that as years pass, the number of mammals will approach 0.

If LK = MK, LK = 7x-10, KN = x + 3, MN = 9x-11, and KJ = 28, find LJ

Answers

LJ = 46 is the value when  LK  congruent MK .

What do you mean by congruent?

It is claimed that two figures are "congruent" if they can be positioned exactly over one another. Both of the bread slices are the same size and shape when stacked one on top of the other. Congruent refers to having precisely the same shape and size.

By given figure ,

        MK = MN - KN

               = 9x - 11 - ( x + 3 )

               = 8x - 14

now given LK ≅ MK

           LK = MK

8x - 14 = 7x - 10

8x - 7x = 14 - 10

 x = 4

length of LJ = LK + KJ

                    = 7x - 10 + 28

                    = 7(4) + 18

                    = 28 + 18  ⇒ 46

Learn more about congruent

brainly.com/question/12413243

#SPJ1

2. Write the correct equation that you would use to solve for side x.
Z
X
520
y = 13cm
Z
Y

Answers

The correct equation that could be used to solve for side x is x = sin52° × (Hypotenuse)

Trigonometry: Determining the correct equation to solve for side x

From the question, we are to determine the correct equation that could be used to solve for side x

From the given diagram, we observe that

Side x is the Opposite

Side z is the Adjacent

Side y is the Hypotenuse

Using SOH CAH TOA, we can write that

sin (angle) = Opposite / Hypotenuse

From the diagram,

Given angle = 52°

Hypotenuse = y = 13

Thus,

sin 52° = x/13

x = sin 52° × 13

OR

x = sin52° × (Hypotenuse)

Hence, the equation is x = sin52° × (Hypotenuse)

Learn more on Trigonometry here: https://brainly.com/question/27220508

#SPJ1

Other Questions
Write the prime factorization for each of the following numbers using exponents if possible. You can configure your wireless router to protect your devices in all of the following ways EXCEPT ____.a. creating a strong password to access the routerb. turning off remote management to the devicec. naming your router something youll remember, like your street addressd. utilizing guest access when needed and turning it off when guests leave The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 7 to 5. If there were 6412 yes votes, what was the totalnumber of votes? 5/If AB is 12, what is thelength of A' B'?B340B'A26A'4C Write the polynomial in standard form g(x) = 3(x + 2)(4x - 1)(x - 5) Find the measure of angle L? What is the greatest challenge of deep-sea exploration? Support your answer with at least 4 facts. a hospital has been notified that possible bioterrorist activity has taken place at a large sporting event nearby. a nurse has been put in charge of preparing a holding area to meet the needs of victims who report headache, dizziness, anxiety and shortness of breath, and are noted to have a bitter almond odor to their breath. what medication should the nurse be prepared to administer? What surprised, challenged, or interested you about this speakers presentation? in The story we tell about poverty isn't true passage NO LINKS what is the legal methods used to achieve Black Lives Matter And non legal methods The same Vegan "meatball" is thrown straight up into the air at a velocity of 21 m/s. It is allowed to fly upward and back down to the height it was originally thrown. What is the Vegan "meatball's" velocity at this moment. PART B: Which of the following quotes regarding Narcissuss love for himself supports theanswer to Part A?A. But her great love increases with neglect; her miserable body wastes away,wakeful with sorrows; leanness shrivels up her skin, and all her lovely featuresmelt, as if dissolved upon the wafting winds. (Paragraph 3)B. He cannot move, for so he marvels at himself, and lies with countenanceunchanged, as if indeed a statue carved of Parian marble. (Paragraph 5)C. Nor food nor rest can draw him thenceoutstretched upon the overshadowedgreen, his eyes fixed on the mirrored image never may know their longingssatisfied, and by their sight he is himself undone. (Paragraph 6)D. No more my shade deceives me, I perceive 'Tis I in theeI love myselftheflame arises in my breast and burns my heart. (Paragraph 6) what is text all about from Filipino learner learn new way. mendel found that yellow pea pod color (g) was dominant to green pea pod color (g). for each of the crosses below, what percentage of offspring are expected to be yellow? a psychologist is working with a child who is disruptive in the classroom. the psychologist interviews the child's teacher to learn more about the disruptive behavior and the events that immediately precede and follow the behavior. which method of conducting a functional assessment is the psychologist using? Read the thesis statement: If it weren't for Germany's treatment in the Treaty of Versailles, World War II never would have happened.Which 2 of the following statements supports this thesis?The Great Depression would have weakened Germany whether they were punished in the Treaty of Versailles or not.Hitler was determined to rise to power and would likely have done so with or without the harsh treatment Germans felt by the Treaty of Versailles.Germany was not the only country struggling after WWI, leading to the rise of a fascist leader.Germany's anger regarding several of the elements of the Treaty of Versailles created the German desire for revenge.The Treaty of Versailles led to economic hardship in Germany which allowed for the rise of Hitler, who believed the Aryan race was destined to rule humanity. Identify Cause and Effect Consider Adam Smith's example of the baker and the butcher. Why do you think bakers, butchers, and other producers tend to offer products that are favorites of their customers? Lead(II) nitrate and ammonium iodide react to form lead(II) iodide and ammonium nitrate according to the reactionPb(NO3)2(aq)+2NH4I(aq)PbI2(s)+2NH4NO3(aq)What volume of a 0.650 M NH4I solution is required to react with 319 mL of a 0.660 M Pb(NO3)2 solution?volume:mL How many moles of PbI2 are formed from this reaction?moles:mol PbI2 5. Cyclists are travelling around a track at 14m/s. When they leave it theyaccelerate from 14m/s to 18m/s at a steady rate, which takes them 3 seconds.What distance did they travel in this time? Given the function f(x) = 3x2+2x+4, find f(2). You must show at least 3 lines of work.