All categories

3 years ago

Which statement is true about the following equation

2 answers:

3 0

First, you would subtract 4.25 from 6.25 and that would be equal to 2.

Then, you would take 2.25z and subtract it from 3.5z and it would equal 1.25z.

Next, you would separate the z by dividing 1.25 on both sides. Z=1.6

Answer: B
There is only one solution.

rjkz [21]3 years ago

3 0

Answer: It has one solution.

Step-by-step explanation:

You might be interested in

A Gallup Poll showed that 30% of Americans are satisfied with the way things are going in the United States. Suppose a sample of

mars1129 [50]

The expected number of a distribution is its mean.

The expected number of Americans who are satisfied with the way things are going in the United States is 6
The standard deviation of Americans who are satisfied with the way things are going in the United States is 2.05

The given parameters are:

$\mathbf{p = 30\%}$ --- the proportion that are satisfied

$\mathbf{n = 20}$ --- the sample size

(a) The expected number that are satisfied

This is calculated using:

$\mathbf{E(x) = np}$

So, we have:

$\mathbf{E(x) = 20 \times 30\%}$

$\mathbf{E(x) = 6}$

The expected number of Americans who are satisfied with the way things are going in the United States is 6

(b) The standard deviation of those that are satisfied

This is calculated using:

$\mathbf{\sigma = \sqrt{n \times p \times (1 - p)}}$

So, we have:

$\mathbf{\sigma = \sqrt{20 \times 30\% \times (1 - 30\%)}}$

$\mathbf{\sigma = \sqrt{20 \times 30\% \times 70\%}}$

$\mathbf{\sigma = \sqrt{4.2}}$

$\mathbf{\sigma = 2.05}$

The standard deviation of Americans who are satisfied with the way things are going in the United States is 2.05

Read more about expected value and standard deviations at:

brainly.com/question/17088771

4 0

3 years ago

HELP ME PLEASE!!!!!!!

mylen [45]

Answer:

Step-by-step explanation:

left skewed

4 0

3 years ago

Read 2 more answers

The circumference of a circle is 16π cm. What is the area, in square centimeters? Express your answer in terms of \piπ.

zepelin [54]

Answer:

64 pi

Step-by-step explanation:

lmk if you need an explanation

4 0

4 years ago

Read 2 more answers

I need to do this it due tommorow

Ierofanga [76]

Answer:

Step-by-step explanation:

when you add all the numbers together you get 14, also where you put the line you can see that the line is a 3 and 5 minus 2 is 3. The next corner next to the 3 is 1 cm because if you look at the horizontal 2 it matches up with the horizontal 1 and 2 minus 1 is 1.

8 0

2 years ago

One of the tents you look at has a base measuring 3 metres long and 250 centimetres wide what is the area of the tent

ozzi

3 +250= 253 take 253 dived it by 3 ,subtract 4 =80.3

5 0

3 years ago