F(x) = x^2 + 1
f(4) = 4^2 + 1 = 16 + 1 = 17
2*f(4) = 2 * 16 = 32
Answer: -14.8
Procedure:
Get the angles measures
Cross multiply
Plog in the calculator 20cos(138)x
And you get -14.8628....
Round your answer -14.8
-
× -
=
Note that it is
not -
since two negatives will cancel each other out.
Now we need to simplify
. We do this by dividing by the greatest common factor. I'll use the guess and check method, but there are other methods that you could also use.
÷
=
Your answer would be
23
.
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.
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.
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I hope it's helpful for you dude
Integers are WHOLE numbers and their opposites, therefore not ALL integers are whole numbers. Some integers can be decimals and or mixed numbers.