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2 years ago

Evaluate 8(7x--3) when x=9

Mathematics

1 answer:

Schach [20]2 years ago

5 0

I will assume that by "Evaluate 8(7x--3) when x=9" you meant:

"Evaluate 8(7x-3) when x=9."

First, substitute 9 for x in 7x-3: 7(9)-3 = 60. Rewrite the problem as:

8(60). Multiply. Answer: 480

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Which equation demonstrates the distributive property?

horrorfan [7]

Answer:

B) 36 + 9 = 3(12 + 3)

Step-by-step explanation:

The distributive property of multiplication over addition is:

a(b + c) = ab + ac

This is demonstrated by switching the sides of option B) 36 + 9 = 3(12 + 3)

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2 years ago

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75 divided 237583940

gizmo_the_mogwai [7]

If 75 divide 237583940, we have

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2 years ago

Gary is 61 1/8 inches tall. His friends Gino and Gilbert are 56 1/2 inches tall and 63 1/8 inches tall. What’s the average heigh

Step2247 [10]

61 1/8 + 56 4/8 + 63 1/8 = 180 6/8

<span>180 6/8 / 3 = 60 2/8 = 60 1/4 incbes</span>

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2 years ago

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Simplify (125)^-2/3 with positive exponents and no radicals <br>show all work.<br>PLEASE HELP

Reptile [31]

For this case, what you should keep in mind are the following considerations:

1) Rewrite the expressions correctly using the properties of the exponents: Addition, multiplication, division, subtraction and negative exponents.

2) Simplify the expression as much as possible.

Answer:
See attached image.

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2 years ago

What is the product?

makkiz [27]

Step-by-step explanation:

(4s + 2) × (5s² + 10s +3)

we know immediately the first and the last term of the result, because there is only one operation to build them :

20s³ and 6.

so, the first answer option is already eliminated.

let's multiply

4s×5s² + 4s×10s + 4×3s + 10s² + 20s + 6

20s³ + 40s² + 12s + 10s² + 20s + 6

20s³ + 50s² + 32s + 6

so, the last answer option is correct.

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1 year ago