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3 years ago

Find the area if the diameter is 14 mm

Mathematics

1 answer:

Iteru [2.4K]3 years ago

6 0

A= 153.9 mm sq

Formula for area is pi times radius squared

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Is m+m+3m equivalent to 3m+2

Dovator [93]

Answer:5m

Step-by-step explanation:

3m +m+m=5m not 3m +2

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3 years ago

Can you add a negative and a positive when doing like term

Verdich [7]

Yes, you can add a negative and a positive when doing like terms.

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3 years ago

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Convert the measurement as indicated

Iteru [2.4K]

Answer:

36 ft

Step-by-step explanation:

Given :

12 yards.

We need to convert it into feets. We know that ,

$\implies$ 1 yard = 3 feet

$\implies$ 12 yards = 12 * 3 ft

$\implies$ 12 yards = 36 ft .

Hence the required answer is 36 feets .

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3 years ago

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Assume that women's heights are normally distributed with a mean given by mu equals 62.5 in, and a standard deviation given by

kirza4 [7]

Answer: a) The probability is approximately = 0.5793

b) The probability is approximately=0.8810

Step-by-step explanation:

Given : Mean : $\mu= 62.5\text{ in}$

Standard deviation : $\sigma = \text{2.5 in}$

a) The formula for z -score :

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

Sample size = 1

For x= 63 in. ,

$z=\dfrac{63-62.5}{\dfrac{2.5}{\sqrt{1}}}=0.2$

The p-value = $P(z$

$0.5792597\approx0.5793$

Thus, the probability is approximately = 0.5793

b) Sample size = 35

For x= 63 ,

$z=\dfrac{63-62.5}{\dfrac{2.5}{\sqrt{35}}}\approx1.18$

The p-value = $P(z$

$= 0.8809999\approx0.8810$

Thus , the probability is approximately=0.8810.

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4 years ago

Inequalities Word Problem:

OLEGan [10]

Answer:

37.5 hours.

Step-by-step explanation:

750-300=450

450/12= 37.5

Liza needs to work 37.5 hours.

To check work:

37.5*12=450

3 0

3 years ago