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2 years ago

HELP!

1 answer:

Ber [7]2 years ago

5 0

A)
8^2+9^2=c^264+81=c^2
c^2=145c=sqrt 145c=12.04
B)
Pythagerean Theorum:
A^2+B^2=C^2, where C is the hypotenuse and A and B are the other legs
15^2=9^2+B^2
225=81+B^2
225-81=B^2
144=B^2 (square root both sides)
12=B

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Step-by-step explanation:

For this case we have the following function given:

$y = x^2 +14x +8$

And we can complete the square adding the middle of 14 squared and subtracted before like this:

$y = x^2+14x +(14/2)^2 +8 - (14/2)^2$

And solving we got:

$y = x^2 +14x +49 + 8 -49$

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$y =(x+7)^2 -41$

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2 years ago

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schepotkina [342]

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2 years ago