Answer:
x=16, y=-12. (16, -12).
Step-by-step explanation:
5x-16y=272
y=(64-7x)/4
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4y=64-7x
4y+7x=64
5x-16y=272
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4(4y+7x)=4(64)
5x-16y=272
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16y+28x=256
5x-16y=272
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33x=528
x=528/33
x=16
5(16)-16y=272
80-16y=272
16y=80-272
16y=-192
y=-192/16
y=-12
I believe the answer is C
Answer:
-4, -x^2, x^2, 4
Step-by-step explanation:
Look up online "equation calculator" and it should be the first one to appear, "Symbolab" supper easy way to help you with problems!
To evalute anything you need expressions for f and g.
By definition of (f+g)(2)=f(2)+g(2) so you take each expression and evaluate them at 2. or you can use (f+g)(2) and calculate f+g and then evaluate whatever you get in 2.
