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Ierofanga [76]
2 years ago
11

Find the value of each variable

Mathematics
1 answer:
Debora [2.8K]2 years ago
7 0
Sui Sui Sui Sui Sui
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Will give brainliest
Effectus [21]
5 x 6 = 30


The area is 30
4 0
3 years ago
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Can someone please help me find find the area of the shaded region for 2 figures please? In the second figure it’s impossible to
Ainat [17]

Answer:

You CAN do it. triangle with the circle. find area of triangle first and subtract circle. (8*8)/2 = 32. minus circle. (2.5*pi^2) = 24.674011. so we have 32 - 24.7 (rounded) = 7.3 for triangle. as for the other? divide it into segments. we have a rectangle on bottom followed by 2 triangles on top of that rectangle. Recangle height is 2 * width. The width is 8 as we can see the top. 2*8= 16. plus the triangles. we know the triangle height is 6 minus the 2 from the rectangle height so 6-2=4 times the width which is the rectangle width minus the 6 from the middle divided by 2 because there are 2 triangles. 8-6=2/2 = 1. height * width = 4 divide by 2 = 2. that is the area of one triangle. but because there are 2 triangles multiply by 2. 2*2 = 4. 16+4=20 for the area of the second figure.

Step-by-step explanation:

6 0
4 years ago
Penalty Shots in World Cup Soccer A study1 of 138 penalty shots in World Cup Finals games between 1982 and 1994 found that the g
Angelina_Jolie [31]

Answer:

There is enough evidence to support the claim that the percent that the goalkeeper guessed correctly is less than 50%.

Step-by-step explanation:

We have to perform an hypothesis test on a proportion.

We have a sample of size n=138, a sample mean of p=0.41.

The standard error is SE=0.043.

We want to test the claim that the real proportion is below 50%.

Then, the null and alternative hypothesis are:

H_0: \pi=0.5\\\\H_a: \pi

The significance level is α=0.05.

The z-statistic can be calculated as:

z=\dfrac{p-\pi+0.5/n}{\sigma_p}=\dfrac{0.41-0.5+0.5/138}{0.043}=\dfrac{-0.086}{0.043}= -2

The P-value (left tail test) for this z-statistic is:

P-value=P(z

The P-value is smaller than the level of significance, so the effect is significant. The null hypothesis is rejected.

There is enough evidence to support the claim that the percent that the goalkeeper guessed correctly is less than 50%.

5 0
3 years ago
Analyze the scatterplot and determine the equation that
Jlenok [28]

Answer:

Relationship is :linear

Rate of change : 3

Y-intercept : (0,1)

Equation that models the data : y=3x+1

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
Please help me in need of answer asap
m_a_m_a [10]

Answer:

y=8

Step-by-step explanation:

if y = -x +7

then

y= 1 + 7 cause we know x = -1 so negative x is 1

so 1+7=8

so y = 8

hope this helped :)

3 0
3 years ago
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