nculberson6
09.03.2020 •
Mathematics
Composition of functions
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Ответ:
10x^2 - 18.
Step-by-step explanation:
We replace the x in g(x) by f(x):
g(x) = 5x + 7 so:
g(f(x)) = 5(2x^2 - 5) + 7.
Now we simplify:
10x^2 - 25 + 7
= 10x^2 - 18.
Ответ:
Step-by-step explanation:
m∠ABC = m∠ABD + m∠CBD = Angle addition postulate1/2mCD + 1/2mAD = Angle measure is the half the intercepted arc1/2(128) + 1/2(76°) = 102°