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2 years ago

Find the area of the figure. please need help

Mathematics

1 answer:

kow [346]2 years ago

3 0

Answer:

Step-by-step explanation:

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What 2 numbers add to get 29 but when you subtract you get 1?

stiks02 [169]

Answer:

15 and 14

Step-by-step explanation:

15+14=29

15-14=1

3 0

1 year ago

Perfect Squaress less than 30

levacccp [35]

The perfect whole squares are 1, 4, 9, 16, 25, 36, 49, 64, 81, 100.

Less than 30 are:

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3 years ago

Which of the following best describes the slope of the line below?

defon

Answer:

I think positive

Step-by-step explanation:

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2 years ago

Read 2 more answers

A research company desires to know the mean consumption of meat per week among people over age 40. A sample of 610 people over a

Papessa [141]

Answer: $(3.0,\ 3.2)$

Step-by-step explanation:

Confidence interval for population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$ (1)

, where $\overline{x}$ = Sample mean

$z_{\alpha/2}$ = Critical z-value

$\sigma$ = Population standard deviation.

n= Sample size.

As per given , we have

n= 610

$\sigma=1.1$

$\overline{x}=3.1$

Significance level for 85% confidence : $\alpha=1-0.85=0.15$

By z-table critical two tailed z-value : $z_{\alpha/2}=z_{0.075}=1.44$

Put all values in (1) , we get

$3.1\pm 1.44\dfrac{1.1}{\sqrt{610}}$

$3.1\pm 1.44\dfrac{1.1}{24.698}$

$3.1\pm 0.064$

$=(3.1-0.064,\ 3.1+0.064)=(3.036,\ 3.164)\approx(3.0,\ 3.2)$

Hence, the 85% confidence interval for the mean consumption of meat among people over age 40. = $(3.0,\ 3.2)$

5 0

3 years ago

X+3=12 solve for x. x =

NeX [460]

Answer:

X is 9

Step-by-step explanation:

9 + 3 = 12

3 0

3 years ago