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fomenos
3 years ago
6

I need help plz plz help me

Mathematics
2 answers:
Norma-Jean [14]3 years ago
8 0

Answer:

A

Step-by-step explanation:

3m+2n-6-4-6m+7n

-3m+9n-10

HACTEHA [7]3 years ago
4 0

Answer:

The answer is a.

Step-by-step explanation:

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Whats 2 1/2 X 1 1/2 someone pls help
Wittaler [7]

Answer:

15/4

Step-by-step explanation:

2 1/2 x 1 1/2

First, make them both improper fractions to make them easier to multiply

5/2 x 3/2

Multiply their numerators together to get the numerator and multiply their denominators together to get the denominator.

5 x 3 = 15

2 x 2 = 4

5/2 x 3/2 = 15/4

4 0
3 years ago
Find the difference. Write your answer in standard form. ( 3x3 + x-4) - (4x² + 2x - 5) The difference is?​
lukranit [14]

Answer:

Step-by-step explanation:

3x³ + x - 4 - (4x² + 2x - 5) =  3x³ + x - 4 - 4x² - 2x + 5

Now combine like terms

                                        = 3x³ - 4x² + <u>x - 2x</u>  <u>- 4 + 5</u>

                                       = 3x³ - 4x² -x + 1

4 0
3 years ago
Read 2 more answers
A sculpture is in the shape of a square pyramid. The sculpture has a height of 36 feet and a volume of 19,200 cubic feet. Find t
lorasvet [3.4K]

Hello Human!

The answer to this is:

a = 40 feet

<h2><u>EXPLANATION:</u></h2><h2><u></u></h2>

<u></u>

Given:

V = 19,200 feet³  volume of the sculpture

H = 36 feet  height of the sculpture

a = ?  side length of the square base

The formula for calculating the volume of a pyramid is:

V = B H / 3  ⇒ B = 3 V / H

B = 3 · 19,200 / 36 = 19,200 / 12 = 1,600

B = a²

a² = 1,600  ⇒  a = √1,600 = 40 feet

a = 40 feet

Hope It Helped!

<u>And Tell me if The answer is wrong. . .</u>

<u />

<h2><u>Good Luck With Your Assignment!</u></h2><h2><u /></h2>

#LearnWithBrainly

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TanakaBro

7 0
3 years ago
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In the diagram, what is the value of x? <br><br> A. 78°<br> B. 108°<br> C. 98°<br> D. 82°
mamaluj [8]

the answer is 98 degrees. C:

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3 years ago
Multiply the polynomial <br><br> (4d-3)(-2d+1)
Nutka1998 [239]
If this an it my bad Gee

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3 years ago
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