If this is supposed to be
Then this can simply be reduced to
by the double angle formula for cosine
Then this can simply be reduced to
by the double angle formula for cosine
A system of inequalities can have no solution? a)true b)false
1 answer:
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Answer:
C
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is
Here [ a, b ] = [ - 10, 10 ], thus
f(b) = f(10) = 10² + 9(10) + 18 = 100 + 90 + 18 = 208
f(a) = f(- 10) = (- 10)² + 9(- 10) + 18 = 100 - 90 + 18 = 28, thus
average rate of change = =
= 9