Convert to an expression with a rational exponent.
A. b-1/3
B. s-4
C. s-3
D. s-6
Answer: C
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Solve the problem.A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 10 inches by 23 inches by cutting out equal squares of side x at each corner and then folding up the sides as in the figure. Express the volume V of the box as a function of x.
A. V(x) = (10 - x)(23 - x) B. V(x) = x(10 - x)(23 - x) C. V(x) = x(10 - 2x)(23 - 2x) D. V(x) = (10 - 2x)(23 - 2x)
Evaluate the integral.
A. 4 B. 1 C. 0 D. 2
Solve the problem. Round your answer to the nearest tenth, if necessary.Two pipes together can fill a large tank in 10 hr. One of the pipes, used alone, takes 15 hr longer than the other to fill the tank. How long would each pipe take to fill the tank alone?
A. 10 hr; 25 hr B. 15 hr; 30 hr C. 25 hr; 40 hr D. 12.5 hr; 27.5 hr
Find the second derivative.y = 3x3 - 6x2 + 5
A. 18x - 12 B. 12x - 12 C. 12x - 18 D. 12x - 12