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musickatia [10]
3 years ago
9

Which equation has both 7 and -7 as a

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
6 0

Answer:

D. X^2=49

Step-by-step explanation:

X= -4 or X=7

X^2=(-7)^2=49

or

X^2=(7)^2=49

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the length of a rectangle is three times it’s width. if the area of the rectangle is 300 yd^2, find its perimeter.
Mashutka [201]

Answer:

80 yards

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