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3 years ago

Which expression is equivalent to x^-5/3

Mathematics

1 answer:

goblinko [34]3 years ago

3 0

Answer:

Step-by-step explanation:

with a fractional exponent, the denominator becomes the root number. so we need a root of 3, which only b and c have.

between those two, b has no negative present whereas c does. since the original exponent was -5/3 we know our answer should have one.

thus c is our answer.

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2 years ago

Question is attached

rodikova [14]

9514 1404 393

Answer:

x = 12

perimeter = 124

Step-by-step explanation:

The midline RS is half the length of MN, so we have ...

2×RS = MN

2(x +3) = 5x -30

2x +6 = 5x -30

36 = 3x . . . . . . . . . add 30-2x

12 = x . . . . . . . . . . divide by 3

The length RS is then ...

RS = x +3 = 15

and the perimeter of QRS is ...

P(QRS) = QR +RS +SQ = 25 +15 +22 = 62

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Step-by-step explanation:

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3 years ago

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