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3 years ago

6

Piper claims that 3(2a + 2) is equivalent to 5a + 6. She checks her claim by substituting -3 for a. Is Piper's claim correct? Wh

y or Why not?
Please Help SOS!!!

1 answer:

Paha777 [63]3 years ago

6 0

Answer:

Piper's claim is not correct.

Step-by-step explanation:

3(2(-3)+2) = 5(-3)+6

3(-6+2) = -15 + 16

-18 + 6 = 1

-12 = 1

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Step-by-step explanation:

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3 years ago

In the figure to the right, if AC = 15 and BC = 12, what is the radius?

Andrew [12]

Answer:

The radius is 9.0 units

Step-by-step explanation:

we know that

In the right triangle of the figure ABC

Applying the Pythagorean Theorem

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3 years ago

A student says that if 5x2 = 20, then x must be

lutik1710 [3]

Answer:

I agree with the student's answer. "x" cannot be -2 because then it would make -20 which is not equal to 20:

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-10 x 2 = ?

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Step-by-step explanation:

Justificaiton:

5(x)(2) = 20

10(x) = 20

10/10(x) = 20/10

x = 2

Second Justification:

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5/5(x)(2) = 20/5

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3 years ago

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3 years ago

240 as a percentage

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Step-by-step explanation:

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