2 years ago

The question is in the image. I

Mathematics

1 answer:

Butoxors [25]2 years ago

4 0

That is right letter b and ir letter c 3-2

You might be interested in

Please help i love u

OLEGan [10]

helped.

This answer was fact checked as TRUE by independent fact checkers

8 0

2 years ago

If 3 3/4 lb of candy costs 20 .25 how many would 1 lb of candy cost

Mrac [35]

solution:

$\frac{c}{w}=\frac{20.25}{\frac{3}{4}}\\\frac{c}{1}=\frac{20.25\times 4}{3}\\\frac{c}{1}=\frac{81}{3}\\c=27\\1Ib cost is \$ 27$

3 0

3 years ago

Which statement reveals Kamkwamba’s ability to overcome obstacles? He didn’t care about getting an education and chose to leave

Pani-rosa [81]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Increasing numbers of businesses are offering child-care benefits for their workers. However, one union claims that fewer than 8

Y_Kistochka [10]

Answer: c. -2.15

Step-by-step explanation:

As per given we have:

Null hypothesis : $H_{a}: p\geq0.80$

Alternative hypothesis : $H_{a}: p$

let p be the proportion of firms in the manufacturing sector offer child-care benefits

A random sample of 390 manufacturing firms is selected and 295 of them offered child-care benefits.

sample size : n= 390

sample proportion : $\hat{p}=\dfrac{295}{390}=0.7564$

Test statistic for proportion :

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

Substitute the values , we get

$z=\dfrac{0.7564-0.80}{\sqrt{\dfrac{0.80(1-0.80)}{ 390}}}$

$z=\dfrac{-0.0436}{\sqrt{0.000410256410256}}$

$z=-2.15257752474\approx-2.15$

Hence, the value of test statistic = -2.15

Correct option is c. -2.15 .

4 0

4 years ago

Please help me because I don't understand how to do it.:)

Fofino [41]

Answer:

V =84.78 inches ^2

Step-by-step explanation:

The volume of a cylinder is given by

V= pi *r^2 h

We know h= 12 inches

and r = 1.5 inches

V = pi * (1.5)^2 * 12

V = pi * 2.25*12

V = 27 pi

If we approximate by 3.14

V = 3.14 (27)

V =84.78 inches ^2

6 0

3 years ago