darryl spent $276 on books. math books cost $21 and English books cost $30. if he bought a total of 11 books how many of each ki
1 answer:
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Hello there!
Simplify the expression.
Hope this helps! :)
~Zain
Simplify the expression.
Hope this helps! :)
~Zain
Answer:
Option B.
Step-by-step explanation:
Option A.
f(x) =
Derivative of the given function,
f'(x) =
=
=
Since derivative of the function is negative, the given function is decreasing.
Option B. f(x) =
f'(x) =
=
=
Since derivative is positive, given function is increasing.
Option C. f(x) =
f'(x) =
=
=
Since derivative is negative, given function is decreasing.
Option D. f(x) =
f'(x) =
=
Since derivative is negative, given function is decreasing.
Option (B) is the answer.