what 1000-500 i need it for my homework

Answer:

D. 9.8 Valentines Day!

............

Answer:

Step-by-step explanation:

A. The null hypothesis is most of the time always the default hypothesis.

In this case study, the null hypothesis is people who regularly listen to radio talk shows vote in national elections as people in general.

While the alternative claim would be: people who regularly listen to radio talk shows are more or less likely to vote in national elections than people in general.

B. Since there are two options in the alternative claim: more or less, the researcher would use a two tailed hypothesis Z test. But if there is only one option, either more or less, then the researcher can use a one tailed Z test.

35 is the answer

Explanation, the sum of interrior angme is 180degree

x+(3x+40)= 180

or, 4x= 180-40

or, x= 140÷ 4

or x = 35

Answer:

B

Step-by-step explanation:

For the 2 lines to be parallel, then the 2 angles are same- side interior angles and are supplementary, thus

x + 3x + 40 = 180 , that is

4x + 40 = 180 ( subtract 40 from both sides )

4x = 140 ( divide both sides by 4 )

x = 35 → B

The measure of the length EF of the triangle is; 21

We are given the the triangle BCD and we are told that;

E is the midpoint of BD.

F is the midpoint of CD

Now, since we have those midpoints, it means that by the concept of similar triangles, that;

DF/DC = EF/BC

Since F is the midpoint of DC, then it means that;

2DF = DC

We are given;

EF = 43 - 4x, and BC = 32 - 2x

Thus, we now have;

DF/(2DF) = (43 - 4x)/(32 - 2x)

1/2 = (43 - 4x)/(32 - 2x)

Cross multiply to get;

32 - 2x = 43 - 4x

4x - 2x = 43 - 32

2x = 11

x = 11/2

x = 5.5

Thus;

EF = 43 - 4(5.5)

EF = 43 - 22

EF = 21

Thus, we conclude that the side length EF is 21.

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Answer:

Each member will get 3 and 1/2 cups or 3.5 cups of ice cream.

The solution is:  the rate of change is 3.

Here, we have,

Since the graph of f(x) is translated 1 unit down, we need to decrease the value of f(x) by 1 to find g(x):

g(x) = f(x) - 1

f(x) = 3|x| – 4

so, we get,

g(x) = 3|x| – 4 - 1

      = 3|x| – 5

Now, to calculate the rate of change over the interval 2 <= x <= 5, we can use the formula below:

rate = g(5) - g(2)/ 5-2

so, we get,

rate = 9/3 = 3

Therefore the rate of change is 3.

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Answer:

your answer is going to be 220.

Answer:

Z = 22.5, Y = 81, X = 26.7

Step-by-step explanation:

Using the lengths you do know compare them to the copy, the only two lengths available that are for the same side length are 33 and 22, divide them together and you get 1.5. Thats the scale factor. Everything else you can figure out by multiplying or dividing by this scale factor.

\(Z = (15)(1.5) = 22.5\\Y = (54)(1.5) = 81\\X = (40)/(1.5) = 26.7\)

Answer:

9

Step-by-step explanation:

5x - 27 / - 3 = - 6

5x - 27 = - 6 x ( - 3 )

5x - 27 = 18

5x = 18 + 27

5x = 45

x = 45 / 5

x = 9

Answer:

P=4

Step-by-step explanation:

P(3) =12

This means that P multiplied by 3 would equal 12.

3 x 4 = 12

So, 'P' equals 4.

The amount more in income tax that Cho pays than Helen each month would be £56.

First, find Helen's yearly salary :

= 1, 720 x  12

= £ 20, 640

Both Cho's and Helen's annual salaries fall within the Basic rate tax bracket.

Cho 's monthly tax would be:

= (( 24, 000 - 12, 570 ) x 20 % ) / 12

= £ 190. 50

Helen's monthly tax :

= (( 20, 640 - 12, 570 ) x 20 % ) / 12

= £ 134.50

The difference is therefore :

= 190. 50 - 134.50

= £56

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Answer:

I'm very trick one but I will get back to you

Answer:

The ball traveled 124 feet.

Step-by-step explanation:

It was caught when it was 2 feet off the ground, so when it was first dropped, it was 32 feet, the first bounce was 16 feet, the second bounce was 8 feet, the third bounce was 4 feet, and the fourth bounce was 2 feet. It also travels up and down.

32

+

32

+

16

+

16

+

8

+

8

+

4

+

4

+

2

+

2

____

62 (only down) x2(for up too)

124

I hope this helped! :)

Maybe check over the answer, I don't want you to get this wrong.

Answer:

\(3x^2\)

Step-by-step explanation:

Then add the value that you carried above the tens place. For example, for 96 x 8, multiply 8 and 9 to get 72. Then add the 4 that you carried to get 76. This will give you a final answer of 768.

The distance across the lake is as follows;

d = 45 m.

Similar triangle are the triangles that have corresponding sides in proportion to each other and corresponding angles equal to each other.

Therefore, let's find the side d of the similar triangles DBA and ECA.

Hence, using proportion,

d / 30 = 145 + 290 / 290

d / 30 = 435 / 290

cross multiply

290d = 435 × 30

290d = 13050

divide both sides by 290

d = 13050 / 290

d = 45

Therefore,

d = 45 meters

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Answer:-1/6

Step-by-step explanation:

Draw a line out in the 2nd quadrant.

Your y=\(\sqrt{35}\)    hypotenuse=6  use pythagorean theorem to solve for x

6² = 35 + x²

x=1

so

cosΘ = -1/6

Answer:4

Step-by-step explanation:

Answer:

648 ft ²

Step-by-step explanation:

The area of Tom's garden would be 36*36 which gives us 1296 ft squared. He used half of his garden for growing roses which means he used 1296/2 =648 ft squared for his roses.

The mean absolute deviation is 0.75

To calculate the mean absolute deviation (M.A.D.), you need to find the average of the absolute differences between each data point and the mean of the data set

From the information given, we have that the data set is;

8 9 9 7 8 6 9 8

Let's calculate the mean, we get;

Mean = (8 + 9 + 9 + 7 + 8 + 6 + 9 + 8) / 8

Mean = 64 / 8

Divide the values

Mean = 8

Let's determine the absolute difference, we get;

Absolute differences=

|8 - 8| = 0

|9 - 8| = 1

|9 - 8| = 1

|7 - 8| = 1

|8 - 8| = 0

|6 - 8| = 2

|9 - 8| = 1

|8 - 8| = 0

Find the mean of the absolute differences:

Average of absolute differences = (0 + 1 + 1 + 1 + 0 + 2 + 1 + 0) / 8

Absolute difference = 6 / 8 = 0.75

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Answer:

B

Step-by-step explanation:

6x -8y = - 16y

6x = -8y

8y = 17x + 4

-8y = -17x - 4

6x = -17x - 4

23x = -4

x = -4/23

Rested numbers in group is 33 out of 76.

A percentage is expressed as a number or ratio that can be expressed as fraction of 100. It is denoted by % symbol.

Total numbers in a group = 76.

44% of them were rested.

That is 44% of 76.

To find how many are rested we have to find the value in numbers.

Convert 44% of 76 to numbers.

For this, it can be written as

\(\frac{44}{100} *76\) = 33.44

Therefore 44% of 76  ≅ 33 numbers.(approximately)

Hence, rested numbers in group is 33.

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The equations Ax = b are not compatible.

It is represented by an equal sign (=) and is used to solve for unknown values or to describe relationships between variables. Equations can be simple or complex, involving basic arithmetic operations or advanced mathematical concepts like trigonometry and calculus.

An equation can be used to solve for a single unknown value, for example, the equation 2x + 3 = 7 can be solved for x by subtracting 3 from both sides, giving us 2x = 4 and then dividing both sides by 2, giving us x = 2. In this example, x = 2 is the solution to the equation.

To determine whether the equations Ax = b are compatible and to compute a solution x, you would first form the augmented matrix [A|b]. Then, you would perform row operations on [A|b] to reduce it to an upper triangular matrix [C|d]. Finally, you would use the software package to solve the square system of equations Cx = d.

If the software terminates with an error message, it means that C is singular, and the equations Ax = b are not compatible. If the software finds the unique solution of Cx = d, it means that the equations Ax = b are compatible and that the solution x is unique. However, it is important to note that the uniqueness of the solution depends on the rank of A being equal to n. If the rank of A is less than n, the equations are not compatible, and if the rank of A is greater than n, the equations have infinitely many solutions.

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Answer:

attached below is the detailed solution

i) equilibrium solution : y = 0 , y^2 = 1 , y = -1 , +1

ii) attached below

iii) attached below

iv) attached below

v) attached below

Step-by-step explanation:

v) For the sketch of curve attached

red curve ( y(0) ) = -3/2

blue curve ( y(0) ) = 1/2

green solution curve ( y(0) ) = 3/2

ANSWER

Nearest Tens

EXPLANATION

We want to first round 142 to the nearest ten and the nearest hundred.

Rounding 142 to the nearest ten, we pick the number after the number in the tens place value, that is 2.

Since it is less than 5, we have to round it to 0. So, we add it to 4:

142 becomes 140.

Rounding 142 to the nearest hundred, we pick the number after the number in the hundred place value, tht is 4.

Since it is also less than 5, we have to round it to 0 and add it to 1:

142 becomes 100.

NEAREST NEAREST TENS

They ran 14 kilometers more the next week, so we add 14 to 140 to get the estimate of the kilometers they ran the second week.

That is:

140 + 14 = 154 kilometers

Now, add it to the first week:

Total distance = 140 + 154 = 294 kilometers

NEAREST NEARESTS

We add 14 to the estimate of the first week to get the distance for the second week :

14 + 100 = 114 kilometers

Now, add it to the first week:

Total distance = 100 + 114 = 214 kilometers

The actual value of the total distance they ran is:

(142 + 14) + 142 = 298 kilometers

So, we see that the estimate that is closer to the actual number of kilometers the team ran is the estimate to the nearest tens.

We add 14 to the estoim

3.8 x\(10^3\) is 169 times smaller than 6.422x \(10^5\).

The number is written in the form  \(a \times 10^b\) where we have  \(1 \leq\) a < 10. Scientific notations have some of the profits as:

Better readability due to compact representation Its value in terms of power of 10 is known, which helps in easy comparison of quantities differing by a large value.

We need to find out how many times 3.8 x 10^5 is greater than 3.8 x 10^-7.

To do that, we have to divide 3.8 x 10^5 by 3.8 x 10^-7 and then find the answer.

Let us do that:

\(\begin{gathered} \frac{3.8\cdot10^3}{6.422\cdot10^{5}}\text{ = }\frac{3.8}{6.422}\cdot\text{ }\frac{10^3}{10^{5}} \end{gathered}\)

= 169

According to the division law of indices states that if a numerator and a denominator have the same base (e.g. 10), then the power of the numerator can subtract of the denominator.

Therefore, 3.8 x\(10^3\) is 169 times smaller than 6.422x \(10^5\).

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Answer:

1.5

Step-by-step explanation:

Vertical angles are congruent so:

7x=8x-12

Subtract 7x from both sides:

0=8x-12

Add 12 to both sides:

8x=12

Divide both sides by 8:

x=1.5 or

x= 3/2

Answer:

The length of the hypotenuse is 100.

Step-by-step explanation:

To find the length of the hypotenuse, we use the following formula:

c=\(\sqrt{a^2+b^2}\)

c=\(\sqrt{28^2+96^2}\)

c=\(\sqrt{10,000}\)

c=100

Therefore, the length of the hypotenuse is 100.

Answer:

x=57

Step-by-step explanation:

The sum of the angles of a triangle add to 180 degrees

(x-5) + (2x-7) + 21  = 180

Combine like terms

3x +9 = 180

Subtract 9 from each side

3x+9-9= 180-9

3x = 171

Divide by 3

3x/3 =171/3

x =57