4 years ago

Identify the like terms.

Mathematics

1 answer:

Aloiza [94]4 years ago

7 0

The correct answer is C: -3b and 4b.

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Help please -19 + 2z = -21

777dan777 [17]

Answer:

z = -1

Step-by-step explanation:

You must first start out by adding 19 to both sides to isolate the variable z, which results in:

2z = -2

Now, you can just divide by two on both sides to get z completely on its own, which gives you:

z = -1

Hope this helped somewhat! :D

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2 years ago

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4 years ago

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3 years ago

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Vadim26 [7]

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3 years ago

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Harrizon [31]

Answer:

9 yd

Step-by-step explanation:

A cube consists of 6 square faces.

Divide the surface area by 6 for the area of one face

486 ÷ 6 = 81 yd²

The area of a square is

A = s² ( s is the side length )

Here A = 81, then

s² = 81 ( take the square root of both sides )

s = $\sqrt{81}$ = 9

Thus side length is 9 yd

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3 years ago