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Mkey [24]
3 years ago
15

Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .

Mathematics
2 answers:
Scrat [10]3 years ago
8 0

Step 1) Find the total circumference

C = pi x d

d = r x 2

d = 5 x 2 = 10

C = pi x 10 = 10pi

Step 2) Find 1/4 of the circumference

10pi / 4 = 2.5pi = 7.85

Step 3) Add the two radii sides to the 1/4 circumference

7.85 + 5 + 5 = 17.85

C = 17.85 feet

Hope this helps! :)

ICE Princess25 [194]3 years ago
7 0

Answer:

17.85ft

Step-by-step explanation:

the quarter circle is 90 degrees, so use this to find the length of the arc (the curve), by doing:

\frac{90}{360}x2x3.14x5

this will give you the answer of 7.85 ft

once you got the length of the arc, add 10 (the two radiuses), to get 17.85ft

hope this helps

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Answer:

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Step-by-step explanation:

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2 years ago
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6 0
3 years ago
Test the claim that the proportion of people who own cats is significantly different than 90% at the 0.1 significance level.
VikaD [51]

Answer:

1. H0 : p = 0.9

   H1 : p ≠ 0.9

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Step-by-step explanation:

We are given that we have to test the claim that the proportion of people who own cats is significantly different than 90% at the 0.1 significance level.

So, Null Hypothesis, H_0 : p = 0.90

Alternate Hypothesis, H_1 : p \neq 0.9

Here, the test is two tailed because we have given that to test  the claim that the proportion of people who own cats is significantly different than 90% which means it can be less than 0.90 or more than 0.90.

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            \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } } ~ N(0,1)   , where,  n = sample size = 100

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       If p-value > significance level  ⇒ Accept null hypothesis

Since, here p-value is less than significance level as 0.05 < 0.1, so we have sufficient evidence to reject null hypothesis.

Therefore, we conclude that proportion of people who own cats is significantly different than 90%.

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