Simplify and state any restrictions on the variable. Remember the order of operations. Show all your work for full
marks!
Answers
Step-by-step explanation:
6+8-90+90008-70000000
Related Questions
In a school of 100 students School Population By Gender
Males Females Total
Freshman 8 17 25
Sophomores 15 10 25
Juniors 12 13 25
Seniors 15 10 25
Total 50 50 100
In a school of 100 students, what is the probability of randomly selecting a student that is either a
female or a senior?
Answers
The probability of randomly selecting a student that is either a female or a senior is 3/4.
What is probability?Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.
The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.
The degree to which something is likely to happen is basically what probability means.
Given:
Males Females Total
Freshman 8 17 25
Sophomores 15 10 25
Juniors 12 13 25
Seniors 15 10 25
Total 50 50 100
Now, the probability of randomly selecting a student that is either a
female or a senior
= 50/100 + 25/100
= 75/100
= 3/4
Hence, the probability of randomly selecting a student that is either a female or a senior is 3/4.
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A quantity with an initial value of 6500 decays exponentially at a rate of 45%
every 2 minutes. what is the value of the quantity after 0.1 hours, to the
nearest hundredth?
Answers
1081.44 is the value of the quantity after 0.1 hours, to the nearest hundredth.
What Is percent in simple words?
Rather than being expressed as a fraction, a percentage is a piece of a whole expressed as a number between 0 and 100. Nothing is zero percent; everything is 100 percent; half of something is 50 percent; and nothing is zero percent. You divide the part of the whole by the whole and multiply the result by 100 to get the percentage.Based on the given conditions, formulate = [tex]6500 * (1 - \frac{45}{100} )^{( 0.1 * 60/2)}[/tex]
Evaluate the equation/expression= 1081.4375
Round the number: 1081.44
Therefore, 1081.44 is the value of the quantity after 0.1 hours, to the nearest hundredth.
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Simplify 2(a + 3b) + 3(4a + b).
(A) 6a+6b
(B) 14a + 9b
(C) 14a + 4b
(D) 6a+ 7b
Answers
Answer: = 14a + 9b
Step-by-step explanation:
distribute:
2(a+3b) + 3(4a+b)
2a + 6b + 12a + 3b
combine like terms:
2a + 6b + 12a + 3b
14a + 6b + 3b
14a + 6b + 3b
= 14a + 9b
Find the zeros of the function f(x)=x^2+9.9x+18. Round values to the nearest hundredth (if necessary).
Answers
A quadratic equation in the form of ax²+bx+c. The zeroes of the polynomial are -2.4 and -7.5.
What is a quadratic equation?A quadratic equation is an equation whose leading coefficient is of second degree also the equation has only one unknown while it has 3 unknown numbers. It is written in the form of ax²+bx+c. The Root of the quadratic equation are given as,
[tex]x = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]
The zeroes of the polynomial are:
f(x)=x² + 9.9x + 18
0 = x² + 9.9x + 18
[tex]x= \dfrac{-9.9\pm \sqrt{(9.9)^2-4(1)(18)}}{2(1)}\\\\[/tex]
x = -2.4, -7.5
Hence, the zeroes of the polynomial are -2.4 and -7.5.
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Given: ∠1 and ∠2 form a linear pair; ∠1 and ∠3 are supplementary
Prove: ∠2 = ∠3
Answers
The statement "If ∠1 and ∠2 form a linear pair; ∠1 and ∠3 are supplementary, then ∠2 = ∠3" is proved.
If the sum of two angles is 180 then they are called supplmentary angles of each other.
If one straight line meets another straight line at a point, then two adjoint angles at that point on that line is called Linear angles to each other.
Here given that ∠1 and ∠2 are linear to each other.
From property of the linear angles we know that the sum of linear angles is 180.
Therefore, ∠1 + ∠2 = 180
So, ∠2 = 180 - ∠1 .........(1)
Also it is given that, ∠1 and ∠3 are supplementary angles.
So, ∠1 + ∠3 = 180
Therefore, ∠3 = 180 - ∠1.....(2)
Comparing (1) and (2) we get,
∠2 = ∠3 = 180 - ∠1
Therefore, ∠2 = ∠3, proved
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Geometry) Find the value of x
Answers are
A. 108^o
B. 36^o
C. 136^o
D. 54^o
(The picture is below) THANK YOU!
Answers
The correct answer is 108° i.e Option A.
.
.
.
HOPE IT HELPS! :)
A rectangular rose garden of length 15 m and width 9 m is surrounded by a path of width 1.2m. find the distance around the outside of the path
Answers
The perimeter of the rectangular rose garden distance outside the path is 57.6m.
What is perimeter of the rectangle?Two equal lengths and two equal widths make up a rectangle. We must sum up the lengths of the rectangle's four sides in order to get its perimeter.
Since there are two of each side length, it is easy to accomplish this by simply adding the length and width and multiplying the result by two.
Perimeter = 2(length + breadth)
Calculation for the outside of the path.
Th initial length of park is 15m.
The increment of the length after the width of path is included is;
= 15 + 1.2 + 1.2 (for both side)
= 17.4m
Similarly, the initial width of the park is 9m.
After the increment of the path the width becomes,
= 9 + 1.2 + 1.2 (both side included)
= 11.4m
The perimeter of the rose garden is ;
P = 2( 17.4 + 11.4)
= 2×28.8
= 57.6m
Therefore, the rectangular rose garden has the perimeter of 57.6m.
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What type of sample is specifically used for gathering information about clandestine or difficult-to-identify groups
Answers
Ethnographic research is the type of sample is specifically used for gathering information about clandestine or difficult-to-identify groups.
Cultures have a set of rules and beliefs about what is correct for that specific culture. Ethnocentrism is the measuring and judging of one culture by another culture. This can be either a positive or negative judgment about the difference between the beliefs of the two cultures. Ethnocentrism is also believing in the inferiority of other cultures compared to the superiority of one's own culture.
Additionally, ethnocentrism is defined by individualistic or collective cultures. Many Western cultures are individualistic; they tend to focus on what is best for the individual.
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Given f(x) and g(x) = f(k x), use the graph to determine the value of k. Please explain how to get the answer
A) 5
B) 1/5
C) -1/5
D) -5
Answers
Using translation concepts, the value of k is given as follows:
B) 1/5.
What is a translation?A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.
In this graph, we have that g(x) = f(kx), hence since g(-2) = f(-10):
-2 = -10k
k = 2/10
k = 1/5.
Hence option B is correct.
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Directions: Find the product and simplify
(3m+n)(3m-n)
ty <3
Answers
Answer:
9m²-n²
Step-by-step explanation:
(3m+n)(3m-n)
This is so easy algebraic expression.
Just rewrite as,
[tex](3m) {}^{2} - n {}^{2} [/tex]Simplifying,
[tex]9m {}^{2} - n {}^{2} [/tex][Alternate method is there]
Quadrilateral PQRS is dilated by a scale factor of 1/2 with point R as the center of dilation, resulting in the image P'Q'R'S'. Which statement is true about line segment P'S'?
Answers
The statement that is true about line segment P'S' is (c) Segment P'S' s 4 units long and lies on a different segment
How to determine the true statement?The complete question is in the attached image
From the image, we have:
PS = 8 units
This means that:
P'S' = 1/2 * PS
So, we have:
P'S' = 1/2 * 8
Evaluate
P'S' = 4
Also, the segment PS and P'S' do not lie on the same segment
Hence, the true statement is (c)
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At what input value will the function
f(x) = -x - 2 + 2 begin to have real
outputs?
Answers
The function will begin to have real output when the input value is 2
How to determine the input value?The function is given as:
[tex]f(x) = -\sqrt{x - 2} + 2[/tex]
Set the radical greater than or equal to 0
[tex]x - 2 \ge 0[/tex]
Add 2 to both sides
[tex]x \ge 2[/tex]
This represents the domian
Hence, the function will begin to have real output when the input value is 2
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Complete question
At what input value will the function [tex]f(x) = -\sqrt{x - 2} + 2[/tex] begin to have real outputs?
PLEASE HELP FAST!
Find the value of the equation shown, I believe that is the cube root of 25
Answers
An expression is defined as a set of numbers, variables, and mathematical operations. The value of (3√x + 7), when the value of x is 25 is 22.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The value of (3√x + 7), when the value of x is 25 is,
3√x + 7
= 3√25 + 7
= 3(5) + 7
= 22
Hence, The value of (3√x + 7), when the value of x is 25 is 22.
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Juan wants to change the shape of his vegetable garden from a square to a rectangle, but keep the same area so he can grow the same amount of vegetables. The rectangular garden will have a length that is 2 times the length of the square garden, and the width of the new garden will be 16 feet shorter than the old garden. The square garden is x feet by x feet.
Old garden area = New garden area
x2 = (2x)(x – 16)
x2 = 2x2 – 32x
0 = x2 – 32x
What is the value of x that makes sense in this context?
What are the dimensions of the new garden?
Answers
The value of x that makes sense in this context is; 32.
The dimensions of the new garden is; 64 by 16.
How to find the real dimensions of the rectangle?The expression that represents the problem statement is;
x² = (2x)(x – 16)
Expanding the bracket gives us;
x² = 2x² – 32x
x² - 32x = 0
x(x - 32) = 0
Thus; x = 0 or x = 32
x can't be 0 and as such the value of x is 32.
Thus;
The length of the new garden is; l = 2x = 64.
The width of the new garden is; w = x - 16 = 32 - 16 = 16
The dimensions of the new garden are therefore; 64 by 16
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6. Try It #6 A line passes through the points, (-2, -15) and (2, -3). Find the equation of a perpendicular line that passes through the point, (6, 4).
Answers
Answer:
The equation of the unknown line is [tex]$g(x)=-\frac{1}{3} x+6$[/tex].
Step-by-step explanation:
In the question, it is given that a line passes through (-2,-15) and (2,-3). Another line perpendicular to the first line passes through (6,4).
It is required to find the equation of the second line. of b and substitute all these values to find the equation of second line.
Step 1 of 2
Find the slope of first line.
[tex]$$\begin{aligned}&m_{1}=\frac{-3-(-15)}{2-(-2)} \\&m_{1}=\frac{12}{4} \\&m_{1}=3\end{aligned}$$[/tex]
Therefore, the slope of second line is [tex]$m_{2}$[/tex].
[tex]$$m_{2}=-\frac{1}{3}$$[/tex]
Step 2 of 2
Substitute the values of [tex]$m_{2}[/tex],x and g(x) to find the b.
[tex]$$\begin{aligned}&g(x)=m x+b \\&4=-\frac{1}{3}(6)+b \\&b=4+2 \\&b=6\end{aligned}$$[/tex]
Therefore, the equation of the unknown line is [tex]$g(x)=-\frac{1}{3} x+6$[/tex].
Step 1 of 2
Find the slope of first line.
[tex]$$\begin{aligned}&m_{1}=\frac{-3-(-15)}{2-(-2)} \\&m_{1}=\frac{12}{4} \\&m_{1}=3\end{aligned}$$[/tex]
Therefore, the slope of second line is [tex]$m_{2}$[/tex].
[tex]$$m_{2}=-\frac{1}{3}$$[/tex]
Step 2 of 2
Substitute the values of [tex]$m_{2}[/tex], x and g(x) to find the b.
[tex]$$\begin{aligned}&g(x)=m x+b \\&4=-\frac{1}{3}(6)+b \\&b=4+2 \\&b=6\end{aligned}$$[/tex]
Therefore, the equation of the unknown line is [tex]$g(x)=-\frac{1}{3} x+6$[/tex].
Which segment is a perpendicular bisector of triangle ABC?
helpp due 20 mins..
Answers
Answer:
SR and RZ
Step-by-step explanation:
A perpendicular bisector is a line segment that passes through the midpoint of a side of a triangle. In other words, If it goes through a side, it should split the segment in half perfectly. Furthermore, it must be perpendicular to the side it passes through (it should form a ninety-degree angle with the side). Given these two rules, one can say that one of the perpendicular bisectors is SR. SR forms a right angle with (and is thus perpendicular to) side AB. Furthermore, AS is congruent to (has the same length as) SB, which means SR cuts AB in half exactly. Another bisector would be RZ (for similar reasoning). Let me know if that doesn't make sense.
What is solve [c-5]=7
Answers
Step-by-step explanation:
c-5-(7)=0
c-12 = 0
c = 12Pls, help me work this out!
Answers
A sprinkler rotates 360 degrees the total are watered is 204yds squared
what is the raduius
Answers
The radius of the area the sprinkler has watered is 8.06 yards.
What is Rotation ?Rotation is spinning around a fixed point with a fixed radius in circular motions.
It is given that a sprinkler rotates 360 degree
The area watered is 204 sq. yards
Radius = ?
A sprinkler rotates in circle
Therefore the area of the circle = π r²
204 = π r²
204 * 7 /22 = r²
r² = 64.91
r = 8.06 yards
Therefore the radius of the area the sprinkler has watered is 8.06 yards.
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isosceles triangle has a base that measures 14 units.
A triangle has a base length of 14. The other 2 sides have a length of y.
The value of y, the length of each leg, must be
equal to 7.
between 7 and 14.
greater than 7.
between 14 and 28.
Answers
The value of y, the length of each leg, must be greater than 7.
What is Isosceles triangle?
This is a type of triangle with two equal sides.
Rules for side length of trianglesThe sum of any two sides of a triangle must be greater than the third side.Let the first, second and third side = a, b and c respectively
(b - a) < c < (a + b)
For an isosceles triangle with base of 14 units, the two other sides must be equal.
c < (a + b)
c = 14
a = b = y
14 < (y + y)
14 < 2y
7 < y
Thus, the value of y, the length of each leg, must be greater than 7.
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Answer: C. greater than 7.
Step-by-step explanation: Trust Me!
Did it on Edge got the answer correct! :)
Copy the figure below onto a separate sheet of paper. Find the image of the figure under reflections in line m and then line t. In the box below, describe the rotation equivalent to the composition of reflections with respect to lines m and t.
Answers
The reflection of the quadrilateral DEFG will be given in the figure.
What is a transformation of geometry?A spatial transformation is each mapping of feature shapes to itself, and it maintains some spatial correlation between figures.
Reflection does not change the size and shape of the geometry.
The image of the figure under reflections in line m and then line t.
The reflection of the quadrilateral DEFG will be given in the figure.
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The sum of two numbers is 115. One number is 5 more than the other. Determine the two numbers.
Answers
Answer:
Number 1 is 55
Number 2 is 60 :)
Step-by-step explanation:
(115 - 5)/2
110/2
55
Number 1 is 55
Number 2 is 60 :)
60 + 55
110 + 5
115 :)
Have an amazing day!!
Please rate and mark brainliest!!
Answer:
the first number is 55 and the second is 60
A 2-column table with 6 rows. The first column is labeled x with entries negative 3, negative 2, negative 1, 0, 1, 2. The second column is labeled f of x with entries negative 16, negative 1, 2, negative 1, negative 4, negative 1. Analyze the table of values for the continuous function, f(x), to complete the statements. A local maximum occurs over the interval . A local minimum occurs over the interval
Answers
Using the definitions of local maximum and minimum, it is found that:
There is a local maximum in the interval [-1,0], as the function decreases in the interval.There is a local minimum in the interval [1,2], as the function increases in the interval.Where are there local maximums and minimum on a function?When a function changes from increasing to decreasing, there is a local maximum.When a function changes from decreasing to increasing, there is a local minimum.In this problem, we have that the function is as follows:
f(-3) = -16.f(-2) = -1.f(-1) = 2.f(0) = -1.f(1) = -4.f(2) = -1.Hence:
There is a local maximum in the interval [-1,0], as the function decreases in the interval.There is a local minimum in the interval [1,2], as the function increases in the interval.More can be learned about the maximum and the minimum of a function at https://brainly.com/question/13539822
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Answer:
-2,0 0,2
Step-by-step explanation:for anyone needing it in the future cause I couldn't find the answer
heeelllp mmmeeee im in an rush
Answers
Answer:
113.1 m
Step-by-step explanation:
If g stands for a whole number, find the first three possible values of g2 + 3.
3, 4, 7
1, 4, 7
3, 5, 7
0, 4, 7
Answers
So the first three possible values of g^2 + 3 are:
3, 4, 7
The first option is the correct one.
Which ones are the first three possible values?
The set of the whole numbers is {0, 1, 2, 3...}
Then the first possible value is when g = 0.
0^2 + 3 = 3
The second possible value is when g = 1
1^2 + 3 = 4
The third possible value is when g = 2.
2^2 + 3 = 7
So the first three possible values of g^2 + 3 are:
3, 4, 7
The first option is the correct one.
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Answer:
3,4,7
Step-by-step explanation:
jus took the test
h is a trigonometric function of the form h(x)=acos(bxc)+d. Below is the graph of h(x) The function has a maximum point at (3,6) and a minimum point at (6.5,-9) find the formula for h(x). Give an exact expression.
h(x)=
*from klan academy*
Please Help URGENT
Answers
Answer:
acos(bxc)+d
h(x)=acos(bxc)+d
The function has a maximum point at (3,6) and a minimum point at (6.5,-9) so
h(x)=6-acos(3bx)+9
or
h(x)=-acos(3bx)+15
Step-by-step explanation:
Please analyze and reasure that this answer is correct.
An exact expression of h(x) is 7.5cos(51.4x - 154.3)-1.5.
What is a trigonometric function?Trigonometric functions are also known as Circular Functions can be simply defined as the functions of an angle of a triangle. It means that the relationship between the angles and sides of a triangle are given by these trig functions.
the difference in y values from max to min = 15. 15/2 = a
max cosine = 1, min cosine =-1
7.5 x 1 - 1.5 = 6
7.5x -1 -1.5 = -7.5-1.5= -9
h(x) = 7.5cos(bx+c) -1.5
now just get a period or frequency that matches the x coordinates 3 and 6.5 to get b and c
at (3,6) cosine = 1 to get a maximum value. cosine is at a max when cos(bx+c) = 1 and bx+c=0, 360, 720...
if x=3, then 3b +c=0 and c=-3b
for (6.5,-9) to be a minimum h value, then cos(6.5b+c) =-1 that happens when the angle = 180. +n360 for any integer n. 6.5b+c = 180
c= 180-6.5b
c=-3b
180-6.5b =-3b
add 6.5b to both sides to get
180= 3.5b
b = 180/3.5 = 51 1/7
c=-3b = -153 3/7
h(x) = 7.5cos(51.4x - 154.3)-1.5
Therefore, exact expression of h(x) is 7.5cos(51.4x - 154.3)-1.5.
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What is the equation of the line passing through the points (–25, 50) and (25, 50) in slope-intercept form?
y = negative 50 x
y = negative 50
y = 50 x
y = 50
x
y
–6
–7
2
–3
8
0
The slope is 2.
The slope is One-half.
The y-intercept is –4.
The y-intercept is 8.
The points (–2, –5) and (8, 0) are also on the line.
The points (–5, –2) and (1, 10) are also on the line.
Answers
The equation of the line passing through the points (-25, 50) and (25, 50) in slope-intercept form is y = 50. Hence, 4th option is the right choice.
The slope-intercept form of a line is written as y = mx + b, where m is the slope of the line, and b is the y-intercept.
The slope of a line passing through the points (x₁, y₁) and (x₂, y₂) can be calculated using the formula, slope (m) = (y₂ - y₁)/(x₂ - x₁).
Therefore, slope of the line passing through the points (-25, 50) and (25, 50) can be calculated as m = (50 - 50)/(25 - (-25)) = 0/(-50) = 0.
We can find the equation of the line using the point-slope formula, according to which, a line having a slope m and passing through the point (x₁, y₁) can be written as y - y₁ = m(x - x₁).
Therefore, the equation of the given line can be written as:
y - 50 = 0(x - 25)
or, y - 50 = 0,
or, y = 50.
Therefore, the equation of the line passing through the points (-25, 50) and (25, 50) in slope-intercept form is y = 50. Hence, 4th option is the right choice.
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What lines are skew to EF?
What plane are parallel to plane ADE?
Answers
The skew lines are CG, DH, AD, BC.
The parallel lines are BC, EH, FG.
What is skew lines?Two or more lines which have no intersections but are not parallel.
As, by the definition
The lines skew to EF is CG, DH, AD, BC
The parallel to AD is BC, EH, FG.
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I really need help can u help me please ?
Answers
Answer:
Answers all found below.
Step-by-step explanation:
1) Given from diagram, RT = RS + RT
RT = 2cm + 2.5cm = 4.5cm
2) Given from diagram, AC = AB + BC
BC = AC - AB
= [tex]6 in-2\frac{3}{4} in\\=3\frac{1}{4} or 3.25in[/tex]
3)Given from diagram, XZ = XY + YZ
XZ = [tex]3\frac{1}{2} +\frac{3}{4} \\=4\frac{1}{4} or 4.25in[/tex]
4)Given from diagram, WX = XY and WY = 6cm
WX = WY / 2
= 6 / 2
= 3cm
For Questions 5,6 and 7, refer to the attached photos, apologies for the terrible drawing.
5) From the diagram,
RS + ST = RT
5x + 3x = 48
8x = 48
x = 48 / 8
= 6
6) From the diagram,
RS + ST = RT
2x + 5x+4 = 32
7x + 4 = 32
7x = 32 - 4
7x = 28
x = 28 / 7
= 4
7) From the diagram,
RS + ST = RT
6x + 12 = 72
6x = 72 - 12
6x = 60
x = 60 / 6
= 10
Express all the trigonometric ratios in terms of cot A.
Answers
Answer:
Who is the youngest in your family?