Hrozmarly needs to evaluate the following expression y^2-x^2 when y=9 and x=2. Her answer should be?

1 answer:

3 0

Answer:

Step-by-step explanation:

y^2 -x^2=

y^2=9^2=81

x^2=2^2=4

81-4=77

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Tcecarenko [31]

Answer:

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The midpoint is their average.
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Olenka [21]

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x is 8 and y is 1 .I'm sure.

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