I need a step-by-step explanation please

Mathematics

1 answer:

Rainbow [258]3 years ago

6 0

Answer:

18x-16

Step-by-step explanation:

expression: (11x-8)+7(x-1)

ok so what you want to do is combine like terms

but first you are going to distribute

(11x-8)+(7x-8) you distribute the 7

they you can subtract 8 from -8 and that will give you -16

you will then add 11x and 7x which will get you 18x

the final expression will be 18x-16

You might be interested in

what is the length, in units, of the hypotenuse of a right triangle if each of the two legs is 2 units?

kykrilka [37]

To figure this out, you'd use the a^2+b^2=c^2 formula. Since you have your two sides, you want to find the value for c. So, you'd plug in two for a and b.

2^2+2^2=c^2

4+4=c^2

Add up the two fours to get 8 and square root it, and you get 2.828427124...

4 0

3 years ago

Read 2 more answers

The proportion of a population with a characteristic of interest is p = 0.37. What is the standard deviation of the sampling dis

lukranit [14]

The standard deviation (SD) of a sample proportion obtained when the sample size is 1,600 is equal to 0.0121.

<h3>What is a sample proportion?</h3>

A sample proportion can be defined as the proportion of individuals in a sample that have a specified characteristic or trait.

Mathematically, sample proportion can be calculated by using this formula:

$\hat{p} = \frac{x}{n}$

Where:

x represent the number of individuals with a specified characteristic.
n represent the total number of individuals in a sample.

In Mathematics, the standard deviation (SD) of a sample proportion obtained when the sample size is 1,600 can be calculated by using this formula:

Standard deviation (SD) = √(p(1 - p)/n)

Substituting the given parameters into the formula, we have;

Standard deviation (SD) = √(0.37(1 - 0.37)/1,600)

Standard deviation (SD) = √(0.37(0.63)/1,600)

Standard deviation (SD) = √(0.2331)/1,600)

Standard deviation (SD) = √0.0001457

Standard deviation (SD) = 0.0121.

Read more on standard deviation here: brainly.com/question/14467769

#SPJ1

8 0

1 year ago

Find each product.Is it an enlargement or reduction?