All categories

3 years ago

What is -3m - 8(m + 1)?

Mathematics

2 answers:

Verizon [17]3 years ago

6 0

Hi!

Answer:

-11m-8

*The answer must have a negative sign.*

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

First, you expand.

$-8(m+1)=-8m-8$

Then you rewrite the problem down.

$-3m-8m-8$

Finally, you add by the numbers and similar elements.

$-3m-8m=-11m$

$3+8=11$

Final answer is -11m-8

I hope this helps you!

Have a nice day! :)

alexira [117]3 years ago

4 0

Answer: -11m-8

Step-by-step explanation:

-3m x -8m= -11m-8

You might be interested in

A/b = c for b help me please this alot of a points please

tatuchka [14]

Simple....

you have:

$\frac{a}{b} =c$

You're trying to find b..so isolate it...

$b* \frac{a}{b} =c*b$

leaving you

a=c*b

still not done....

$\frac{a}{c} = \frac{c*b}{c}$

$\frac{a}{c} =b$

Thus, your answer.

4 0

4 years ago

Read 2 more answers

Misha practices the guitar for 3 hours every day.

kakasveta [241]

Answer:

It is B. H = 3d

Step-by-step explanation:

I got it right :)

4 0

3 years ago

Read 2 more answers

What is the slope of the line shown on the graph to the right?

Agata [3.3K]

Is 1 up and 2 to the side

5 0

3 years ago

A photographer is 6 feet tall and cast a shadow that is 2 feet long. He is photographing a palm tree with a shadow that is 7 fee

Novay_Z [31]

Answer: The height of the tree is 21 feet.

Step-by-step explanation:

Here we can assume that the angle at which the sun impacts the photographer and the tree to be the same angle.

Then we can think in both cases as triangles rectangles, where the height is a cathetus, and the shadow is the other cathetus.

Then we will have a relationship like:

Tg(angle) = shadow/height

height = shadow/Tg(angle)

Now, because for both triangles we have the same angle, then Tg(angle) will be the same number for both cases, and we can just think of it as constant K

Tg(angle) = K

Then we have the equation:

Height = Shadow/K

We know that the photographer is 6ft tall, and his shadow is 2 ft long, we can replace those two things in the above equation and find the value of k:

6ft = 2ft/K

K = 2ft/6ft = (1/3)

Now we know that the shadow of the tree is 7ft long, then the height will be:

height = 7ft/(1/3) = 7ft*3 = 21ft

The tree is 21 ft tall.

6 0

3 years ago

If Anne can type 8 words for every 5 words. James can type if James can type 150 words how many words can Anne type? HELP PLEEEA

erma4kov [3.2K]

So what your saying is that James can type 5 words and Anne can type 8 words right? And James types 150 so how many can Anne type? Is that what your asking?

5 0

3 years ago

Read 2 more answers