Find the derivative of the function.f(x) = (5x - 3)(
+ 3)
A. f'(x) = 7.5x1/2 - 1.5x-1/2 + 15
B. f'(x) = 3.33x1/2 - 3x-1/2 + 15
C. f'(x) = 7.5x1/2 - 3x-1/2 + 15
D. f'(x) = 3.33x1/2 - 1.5x-1/2 + 15
Answer: A
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Find the derivative.s = 4t2 + 9t + 4
A. 8t2 + 9 B. 8t + 9 C. 4t2 + 9 D. 4t + 9
Solve the problem.The financial department of a company that produces digital cameras arrived at the following price-demand function and the corresponding revenue function:p(x) = 95.4 - 6xprice-demandR(x) = x ? p(x) = x(95.4 - 6x)revenue functionThe function p(x) is the wholesale price per camera at which x million cameras can be sold and R(x) is the corresponding revenue (in million dollars). Both functions have domain 1 ? x ? 15. They also found the cost function to be C(x) = 150 + 15.1x (in million dollars) for manufacturing and selling x cameras. Find the profit function and determine the approximate number of cameras, rounded to the nearest hundredths, that should be sold for maximum profit.
What will be an ideal response?
Solve the problem.Michael's bank contains only nickels, dimes, and quarters. There are 53 coins in all, valued at $4.25. The number of nickels is 3 short of being three times the sum of the number of dimes and quarters together. How many dimes are in the bank?
A. 6 dimes B. 13 dimes C. 39 dimes D. 8 dimes
Identify any intercepts and test for symmetry. Then sketch the graph of the equation. ? y = |x- 4| ?
A. x- intercept: (4, 0)
y- intercept: (0, 4)
No symmetry
?
?
B. x- intercept: (-4, 0)
y- intercept: (0, 4)
No symmetry
?
C. x- intercept: (4, 0)
y- intercept: (4, 0)
No symmetry
?
D. x- intercept: (4, 0)
y- intercept: (0, 4)
No symmetry
?
E. x- intercept: (4, 0)
y- intercept: (4, 0)
No symmetry
?
