Forty three million, six hundred and four thousand, five hundred ninety four
She must get 46 questions correct to get a 92% on the test
Answer:
The correct answer is 10 for lowest average cost and the cost function is 0.2
+ 75x + 20.
Step-by-step explanation:
Average cost function is given by =
= C(x) = 0.2x +
+75.
For minimizing we need to find
C(x) = 0.
⇒
C(x) = 0.2 -
.
⇒
= 0.2
⇒
= 100.
⇒ x = ±10
⇒ x = 10 ; cost cannot be negative.
Second order derivative is positive which implies the average cost minimizes.
Original cost function is given by C(x) × x = 0.2
+ 75x + 20.
Answer:
789 9999 00087 990
99n
Step-by-step explanation:
098