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3 years ago

HELP ASAP!!! (10 POINTS AND BRAINLEST)

Mathematics

2 answers:

wolverine [178]3 years ago

6 0

C
So it is the two triangles plus the rectangle sides and one triangle is 35.1 so two is 70.2 and then each of the rectangular sides is 16x9 which is 144 and there’s 3 of them so 432. 432+70.2 is 502.2 so it’s c

lana [24]3 years ago

3 0

Answer:

Step-by-step explanation:

All I did was use the formulas

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Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using federal tax dollars to fund

ser-zykov [4K]

Testing the hypothesis, it is found that since the p-value of the test is 0.0042 < 0.01, it can be concluded that the proportion of subjects who respond in favor is different of 0.5.

At the null hypothesis, it is tested if the proportion is of 0.5, that is:

$H_0: p = 0.5$

At the alternative hypothesis, it is tested if the proportion is different of 0.5, that is:

$H_1: p \neq 0.5$

The test statistic is given by:

$z = \frac{\overline{p} - p}{\sqrt{\frac{p(1 - p)}{n}}}$

In which:

$\overline{p}$ is the sample proportion.
p is the value tested at the null hypothesis.
n is the sample size.

In this problem, the parameters are given by:

$p = 0.5, n = 483 + 398 = 881, \overline{p} = \frac{483}{881} = 0.5482$

The value of the test statistic is:

$z = \frac{\overline{p} - p}{\sqrt{\frac{p(1 - p)}{n}}}$

$z = \frac{0.5482 - 0.5}{\sqrt{\frac{0.5(0.5)}{881}}}$

$z = 2.86$

Since we have a two-tailed test(test if the proportion is different of a value), the p-value of the test is P(|z| > 2.86), which is 2 multiplied by the p-value of z = -2.86.

Looking at the z-table, z = -2.86 has a p-value of 0.0021.

2(0.0021) = 0.0042

Since the p-value of the test is 0.0042 < 0.01, it can be concluded that the proportion of subjects who respond in favor is different of 0.5.

A similar problem is given at brainly.com/question/24330815

3 0

3 years ago

The area of a triangle is 36 square inches. What is the height of the triangle if the base length is 8 inches? (3 points) a 8 in

Anit [1.1K]

9514 1404 393

Answer:

b. 9 inches

Step-by-step explanation:

The area of a triangle is given by ...

A = 1/2bh

Solving for h, we get ...

h = 2A/b

h = 2(36 in²)/(8 in) = 72/8 in

h = 9 in

The height of the triangle is 9 inches.

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3 years ago

How much money is 1 dollars 1 quarters 1 nickel and 3 pennies

garik1379 [7]

Answer: $1.33

Step-by-step explanation: you have one dollar. One quarter is 25 cents. One nickel is 5 cents. And 3 pennies is 3 cents so you add 25+5+3=33 and you add that to one dollar and you get $1.33.

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3 years ago

Read 2 more answers

Find the missing side length, and enter your answer in the box below. If

mixas84 [53]

3^2 + 4^2 = c^2

sqrt(9) + sqrt(16) = c^2

Sqrt(25) = c^2

C = 5

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3 years ago

5. When I sine an angle like 60°, it gives me a value like 0.866025403. What does this number represent?

PolarNik [594]

Answer:

See below

Step-by-step explanation:

The number you described is the same as $sin(60^{\circ})=\frac{\sqrt{3}}{2}$ where the sine of an angle is the ratio between a right triangle's opposite side to the angle and the hypotenuse. So, in this case, if we had a right triangle with a height of $\sqrt{3}$ units and a hypotenuse of 2 units, the ratio between the two sides will result in the value you provided. This right triangle in particular would be a 30-60-90 triangle.

In the case of a unit circle, it’s the y-coordinate of the point where a 60° angle in the standard position intersects a unit circle and a right triangle is created from that.

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3 years ago