All categories

2 years ago

I need help with the problem

Mathematics

1 answer:

Marizza181 [45]2 years ago

4 0

The length is 15 metres,the width is 9 m,and the area is 135 m

Hope this will help u..

You might be interested in

Simplify the expression. |5| - |-4|

mylen [45]

Answer:

Step-by-step explanation:

Absolute value means take what is inside and make it positive

|5| - |-4|

5 - 4

6 0

2 years ago

Is 3 a factor of 43,39,63 write yes or no

inysia [295]

If you mean 433,963 then no as it’s a prime number.

7 0

3 years ago

A pitcher could hold 2/12 of a gallon of water. If Roger filled up 9 pitchers, how much water would he have?

VashaNatasha [74]

1.5 because 2/12=1/6 9 x (1/6) =1.5 gallons of water.

6 0

2 years ago

Nico had 3 1/2 yards of fabric. He used 2/3 yard to make a pillow cover and 1/3 yard to make a scarf. How much fabric does Nico

7nadin3 [17]

2 1/2 yards of fabric are left

3 0

2 years ago

Read 2 more answers

Researchers ask a random sample of 1,001 adults nationwide whether they favor or oppose the legalization of marijuana. Fifty-fiv

natima [27]

Answer:

b. It will decrease by a factor of 2

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence interval $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The lower end of the interval is given by:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}}$

The upper end of the interval is given by:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}}$

The length of the interval is the subtraction of the upper end by the lower end, so it is:

$L = 2z\sqrt{\frac{\pi(1-\pi)}{n}}$

This means that the length is inverse proportional to the square root of the size of the sample.

So, if the sample size is multiplied by 4, the length of the interval is going to decrease by a factor of 2.

4 0

2 years ago