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3 years ago

Find the area of a circle that has a diameter of 60 feet.

Mathematics

1 answer:

IrinaK [193]3 years ago

3 0

Answer:

60π

Step-by-step explanation:

Hullo :D

I think this will be a piece of helpful info:

The formula for finding the area of a circle if πd.

In that case, we just substitute 60 (our d)

So the area will be 60π

If you want that multiplied, you'll get 188.4 (multiplying by 3.14)

Thus, the answer is $$\boxed{60\pi}$ .

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vladimir2022 [97]

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Step-by-step explanation:

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3 years ago

A media poll of 500 air travelers surveyed in national airports found that 370 favor tighter security procedures in boarding pla

serg [7]

Answer:

92% Confidence interval: (0.7078,0.7722)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 500

Number of travelers who favor tight security, x = 370

$\hat{p} = \dfrac{x}{n} = \dfrac{370}{500} = 0.74$

92% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.08} = \pm 1.645$

Putting the values, we get:

$0.74\pm 1.645(\sqrt{\dfrac{0.74(1-0.74)}{500}}) = 0.74\pm 0.0322\\\\=(0.7078,0.7722)$

3 0

4 years ago

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Firdavs [7]

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3 years ago

Can someone help with this please

qwelly [4]

B

= 6m^4n^6

c

2/x^-4
= 2x^4

e
3^4 w^-8
= 81 w^-8
= 81/w^8

f
m^-3
= 1/m^3

6 0

3 years ago

Defatted blackcurrant seeds (DBS) could be used as a dietary supplement in gluten-free bread but their use may affect texture. A

dalvyx [7]

Note: This is the correct table format.

Flour type z Mean StDev

No DBS 00 552 18

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Answer:

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Step-by-step explanation:

In this question, three different means of the data are compared. ANOVA is used for comparing between two or more means to test for differences. It extends the z and t test that are only used for comparing two means.

Since three means are compared, the inference procedure to be used is ANOVA.

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3 years ago