PLEASE HELP!!!!! I DONT UNDERSTAND THIS

Answer:

Step-by-step explanation:

To find the slope of a line that passes through two points, we can use the slope formula, which is written as follows:

slope = (y2 - y1) / (x2 - x1)

Where (x1, y1) and (x2, y2) are the coordinates of the two points.

Given the points (-7, -2) and (-15, -14), we can substitute their coordinates into the slope formula to find the slope of the line:

slope = (-14 - (-2)) / (-15 - (-7))

= -12 / -8

= 3/2

Therefore, the slope of the line that passes through the points (-7, -2) and (-15, -14) is 3/2. In simplest form, this is equal to 1.5.

Answer: first choice!

sin2Theta= -4rt21/25

cos2Theta = 17/25

Step-by-step explanation:

Use Double Angle Formulas.

You can find cos2Theta immediately because one of the formulas needs only sin(theta) and that was given.

Cos2Theta =

1 - 2(sinTheta)^2

= 1 - 2(-2/5)^2

= 1 - 2(4/25)

= 1 - 8/25

= 25/25 - 8/25

= 17/25

The only answer with cos2theta=17/25 is the first choice.

Use a simple graph and Pythagorean Theorem to find cos(theta). Then you can use the Double Angle Formula for sin2theta. This would kinda be a double check if you have time. Since the first part of the solution eliminated all choices except the first choice, if you're pressed for time just do cos2theta calculation and pick the first choice.

See image for sin2theta calculation.

Answer:

a ≈ 3.009075116

Step-by-step explanation:

cos(α) = adj/hyp

cos(53°) = a/5

a = 5 * cos(53°)

a ≈ 3.009075116

It would provide a reference for the effects of random environmental factors.

A control group is a statistically significant subset of experiment participants who are not exposed to factors. For example, in a pharmaceutical medication research, the control group is given a placebo, which has no impact on the body. Assume you want to put a new ADHD medicine to the test. One group would be given the new drug, while the other would be given a tablet that looked precisely like the one given to the others, but it would be a placebo. The control group would be the group that receives the placebo.

Here,

It would serve as a reference for the effects of uncontrollable environmental elements.

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Answer: -81

Step-by-step explanation: So, when finding exponents, you have to multiply the # in parentheses (in this case, -3) and multiply it by itself 4 times, so once is 3 x 1, twice is 3 x 3 = 9, three times is 9 x 3 = 27, and finally, 27 x 3 = 81. Oh, and a positive times a negative is ALWAYS negative. I hoped this explains why this is the rule for exponents.

Answer:

  D.  66 cm

Step-by-step explanation:

You have parallelogram MNPR with diagonals that cross at E, and ME = 7x-30, and PE = 5x-12. You want to know the length of MP.

The diagonals of a parallelogram bisect each other this means point E is the midpoint of diagonal MP, and ...

  ME = PE

  7x -30 = 5x -12

  2x = 18 . . . . . . . . . add 30-5x

  x = 9

Then the length of the half-diagonal is ...

  ME = 7x -30 = 7(9) -30 = 33

So, the full diagonal is ...

  MP = 2·33 = 66 . . . . . cm

Answer:

1.375

Step-by-step explanation:

11/8=1.375

Answer:

83% to (rare photos) becaheyhw euehem e the same time of 6year and I was in a group with my wife and a daughter and my daughter in the night and I was so happy 4and was a 4ship 4in who 5is and my daughter and my husband were so young that I was in the same 5 year olds and I was in the

The equivalent expressions of 9/7x-3/4 are 9/7x+(-3/4) and -3/4+9/7x.

An expression is combination of variables, numbers and operators.

The given expression is 9/7x-3/4.

Nine by seven times of x minus three by four.

x is the variable of expression.

The equivalent expression is an expression whose value is same but looks different.

9/7x-3/4.

By commutative property

-3/4+9/7x is an equivalent expression of 9/7x-3/4.

9/7x+(-3/4).

When we simplify we get 9/7x-3/4.

-9/7x+3/4 is also a equivalent expression we get it by multiplying with negative.

Hence, 9/7x+(-3/4) and -3/4+9/7x are equivalent expressions of 9/7x-3/4.

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Given all angle information, the assumption that sides [tex]\overline {BC}[/tex] must not be congruent to [tex]\overline{DA}[/tex] to give an appropriate answer. (Right choice: None)

Any quadrilateral can be divided into two triangles by adding a diagonal. By Euclidean geometry, the sum of the measures of internal angles equals 180°. Likewise, we can determine how short or long a side is in terms of side BD by law of sine:

AD / sin 60° = AB / sin 63° = BD / sin 57°

1.155 · AD = 1.122 · AB = 1.192 · BD

AD = 0.971 · AB = 1.032 · BD

BC / sin 57° = CD / sin 55° = BD / sin 68°

1.192 · BC = 1.221 · CD = 1.079 · BD

BC = 1.024 · CD = 0.905 · BD

By direct inspection and use of equality properties, we find the existence of an absurdity, because 1.032 · BD = 0.905 · BD, then [tex]\overline {BC}[/tex] must not be congruent to [tex]\overline{DA}[/tex] to satisfy all angle conditions.

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The polynomial p(x) must have at least two zeros, since it has three relative extrema.

What is polynomial?

A polynomial is a mathematical statement made up of coefficients and indeterminates that uses only the operations addition, subtraction, multiplication, and powers of positive integers of the variables. x²- 4x + 7 is an illustration of a polynomial with a single indeterminate x.

Here i would think that since there are only 3 critical points given and no other information other than that those are the only critical points that p(x) would not have any real zeros.

At each of the relative extrema, the value of the function changes from increasing to decreasing or vice versa, meaning that the function crosses the x-axis at that point, which is a zero. Therefore, p(x) must have at least two zeros.

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We can see two transformations.

1) ΔABC  → ΔA'B'C', it is a translation 10 units left and 2 units up.

2)  ΔA'B'C'  → ΔA''B''C'', it is a reflection across the x-axis.

An expression that models the series of events is 2(6,218 - 92 + 417).

The possible events are:

120 followers stop following Zuberi's blog.

The number of followers triples.

312 followers start following Zuberi's blog.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

At a certain point, she has 6,218 followers.

Events happened in order:

92 people stop following Rida's blog.

417 people start following Rida's blog.

The number of followers doubles.

An expression that models this series of events.

= 2(6,218 - 92 + 417)

The current number of followers.

= 3 (945 - 120) + 312

The possible events.

120 followers stop following Zuberi's blog.

The number of followers triples.

312 followers start following Zuberi's blog.

Thus,

An expression that models the series of events is 2(6,218 - 92 + 417).

The possible events are given above.

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We determined the conditional probability of drug assigned people who survived at least 5 years = 101/344

The possibility of occurring an event connected to the previous other event. That means occurring of two events is related to each other.

We determine the probability by the following way.

At first, we will make a chart with the given data.

                        survived 5yrs        get other result      total

Drug assign         101                         243                      344

placebo               299                        179                       478

total                     400                       422                       822

 We need to determine the probability of 5 years survived persons from drug assigned

Let, it is denoted by P(Sr/Dr)

As per conditional probability P(Sr/Dr) = P(Sr and Dr)/P(Dr)

                                                               = 101/344

As from the above chart, we find P (Sr and Dr) =101 and

P(Dr) = total drug assigned = 344

hence, P(Sr/Dr) = 101/344

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The equation of the line that passes through the point (1, 6) and is perpendicular to the line x + 3y = 27 is y = 3x + 3.

What is a perpendicular line?

If two geometrical objects overlap at a right angle, they are perpendicular.  It can be defined between two planes, two lines, or two planes and another line.

Here, we have

Given

The point (1, 6) and is perpendicular to the line x + 3y = 27

The slope of the line x + 3y = 27

m = -1/3

The slope of the line perpendicular to the line x + 3y = 27

M = 3

The equation of the line:

y - 6 = 3(x - 1)

y = 3x + 3

Hence, the equation of the line that passes through the point (1, 6) and is perpendicular to the line x + 3y = 27 is y = 3x + 3.

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Answer:

the HL Postulate

Step-by-step explanation:

The diagram gives us the information that 2 sides and 1 angle are congruent. Since the sides we know are a leg and the hypotenuse, and it is a right angle- we know to use the HL (Hypotenuse-Leg) Postulate.

If the angle given was the angle between the hypotenuse and the leg, we could use the SAS (Side-Angle-Side) Postulate. But, since it is the right angle instead- we know to use the HL Postulate!

a) The category that shows a decrease in the average monthly expenditure between 2010 and 2020 is Leisure.

b) The average monthly expenditure on food was 175 euros more in 2020 than in 2010.

c) The total expenditure in 2020 is of: 1,625 euros.

The bar chart shows the average monthly expenditure in five categories, considering that:

Then a decrease happens for the category which the blue bar is greater than the gray bar, which is Leisure.

The averages on Food are given as follows:

Hence the difference is of:

325 - 150 = 175 euros.

From the gray bars, the 2020 total is given as follows:

250 + 425 + 325 + 550 + 75 = 1,625 euros.

The bar graph is given by the image shown at the end of the answer.

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Answer:

1. B

2. A

3. B

4. D

5. C

The evaluation is 10.67 of given geometric progression.

A geometric progression is a set of elements where each succeeding element is created by multiplying the one before it by a number called the common ratio. The standard representation for a geometric progression series is a, ar, ar²,..., where an is the first term and r is the common ratio of the sequence.

The ratio between two consecutive numbers, or a number divided by the number before it in the sequence, is known as the common ratio since it is the same for all numbers or common.

The sum of a finite geometric series can be found using the formula:

[tex]a (1-r^{n}) / (1-r)}[/tex].

Where a is the first term and r is the common ratio between successive terms.

To find the ratio of successive terms by plugging into the formula

r = aₙ +1 / (aₙ)

Simplifying,

r =1/4

And the first term is;

when n=1, a = 8

Substituting all the values to the formula,

The summation of GP

= 8 x { 1 - (1/4)¹⁰ } / {1- (1/4)}

= 8 { 1 - (1/1048576) / (3/4)

= 8 x {(1048576 - 1) / 1048576} x (4/3)

= 8 x (1048575 / 1048576) x (4/3)

= 8 x 349525 / 262144

= 2796200 / 262144

= 10.6666

The decimal form is 10.67.

Therefore, the evaluation is 10.67.

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Answer:

5494.5

Step-by-step explanation:

[tex]\frac{1}{3}(37)(33)(13.5)=5494.5[/tex]

The vehicle travels 110 feet distance in 1 second duration.

mph expresses the speed or velocity in miles per hour. Speed means rate of change of distance with respect to time.

speed = distance/time

hence, distance = speed x time

the above equation is the relationship between distance, speed and time

we will use the above equation and convert miles to feet and second to hour.

given, speed of vehicle = 75 mph

time = 1 second =1/3600 hour as 1 hour = 3600 second

distance travel by vehicle = speed x time

                                            = 75 mph x 1/3600 hour

                              distance              = 0.020833333 miles

               we know, 1 mile =5280 feet

  distance in feet = 110 feet

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If Sue's home is the origin and the positive direction is assumed to the right, then her position is 2 mi.

Therefore, the answer is 2mi.

Origin depends on the frame of reference, it depends on from where the observer is viewing.

From the figure, distance between home and Sue = 2 - 0 = 2mi

and the distance between Cinema and Sue = 5 - 2 = 3mi

Sue's position is 2mi right to her home and 3mi left to the Cinema. So if her home is the origin and positive direction is to the right x is +2 mi.

--The question is incomplete without the figure, answering to the figure attached--

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Answer:

Its been a minute since I've done this math

Step-by-step explanation:

This statement demonstrates the substitution property.

The substitution property states that if two expressions are equal, then we can substitute one expression for the other in any equation or inequality. In this case, "A" is an acute angle, and "m2A" is the measure of twice that angle. The statement says that if we double the measure of an acute angle, the result will be 30 degrees. Therefore, we can substitute "m2A" for 30 degrees in any equation or inequality.

The reflexive property states that any number or object is equal to itself. The symmetric property states that if a = b, then b = a. The transitive property states that if a = b and b = c, then a = c. None of these properties are demonstrated in the given statement.

Step-by-step explanation:

5x - 3 = 5

5x = 8

x = 8/5 = 1.6

5x = 2

x = 2/5 = 0.4

both equations are vertical lines.

the first one (x = 1.6) was moved (translated) left by 1.2 units to become x = 0.4.

If 1=3, 2=3, 3=5, 4=4, and 5=4, then it is not possible to determine the value of 6. In this scenario, the numbers are not being used in a consistent or logical manner, so it is impossible to predict what value 6 might have. In general, it is not possible to determine the value of a number based on a series of equations that do not follow the rules of arithmetic.

Answer:

The interest earned is $10.00

Step-by-step explanation:

Interest = principal x rate x time

I= 100(.01)(10)

I = 10

Answer:

D

Step-by-step explanation:

The correct answer is D. The SSS Triangle Congruence Theorem states that if three sides of one triangle are congruent to three sides of another triangle, then the triangles are congruent. In the given situation, triangle ABC and triangle DEF are congruent because all three sides of triangle ABC are congruent to the corresponding sides of triangle DEF.

Answer: y= 2x

Step-by-step explanation:

The linear function is y=mx+b

In this case, the m or slope is 2

And the b or y-intercept is 0

So we have the equation

y= 2x

Answer:

y=-0.5

Step-by-step explanation:

3(3)-2y=10

9-2y=10

-2y=1

y=-1/2

Answer:

y=-0.

Step-by-step explanation:

Answer:$22.50 regular price

Step-by-step explanation: RP=Regular Price

RP-20%of RP=18

RP-0.20RP=18........RP =1RP

1RP-0.20RP=18

0.80RP=18

RP=18/0.80

RP=$22.50

Answer:

22.50

Step-by-step explanation:

other answer is cryptic so here is a full explaination

To find the regular price of the hat, we need to determine the amount of the discount and then add that amount to the discount price.

The discount on the hat is 20% of the regular price, or 20/100 * regular price. The discount price is $18, so we can set up the equation:

discount price = regular price - (20/100 * regular price)

Substituting the known values into the equation, we get:

$18 = regular price - (20/100 * regular price)

Solving for the regular price, we find that the regular price is $22.50. This is the price of the hat before the discount.