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3 years ago

Can circles have different circumference and radius?

1 answer:

7 0

Yes here is the formula :) Circumference = π × diameter = 2 × π × radius. hope this helps :D! please rate brainliest! thanks.

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L. A number, n, is multiplied by -5 The product is - 20. whats the value of n?

MA_775_DIABLO [31]

Answer:

n=4

Step-by-step explanation:

itis it is already multiplying by -5 we have to multiply it by a postive will remain a negative 20

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3 years ago

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A child's wading pool has a diameter of 7 feet an pool has a diameter of 7 feet and is 8 inches deep . How many gallons of water

Leno4ka [110]

7x8 do that work..... n

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3 years ago

What is 563 divided by 0.4

Elenna [48]

563/.4 is equal to 1,407.5

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3 years ago

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In a school, enrollment this year had a deficit of 6% compared to last year. If 658 students have enrolled this year, how many s

hammer [34]

Answer:

695 Students

Step-by-step explanation:

This is because 6% of 658 is 39. 39 Students + 658 Students is 695 students.

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3 years ago

A gallup survey indicated that 72% of 18- to 29-year-olds, if given choice, would prefer to start their own business rather than

Neko [114]

Answer:

The probability that no more than 70% would prefer to start their own business is 0.1423.

Step-by-step explanation:

We are given that a Gallup survey indicated that 72% of 18- to 29-year-olds, if given choice, would prefer to start their own business rather than work for someone else.

Let $\hat p$ = sample proportion of people who prefer to start their own business

The z-score probability distribution for the sample proportion is given by;

Z = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, p = population proportion who would prefer to start their own business = 72%

n = sample of 18-29 year-olds = 600

Now, the probability that no more than 70% would prefer to start their own business is given by = P( $\hat p$ $\leq$ 70%)

P( $\hat p$ $\leq$ 70%) = P( $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ $\leq$ $\frac{0.70-0.72}{\sqrt{\frac{0.70(1-0.70)}{600} } }$ ) = P(Z $\leq$ -1.07) = 1 - P(Z < 1.07)

= 1 - 0.8577 = 0.1423

The above probability is calculated by looking at the value of x = 1.07 in the z table which has an area of 0.8577.

3 0

3 years ago