Use the square root method to solve the equation. y2 - 20 = 0
A. 400
B. 
C. 10
D. ± 2
Answer: D
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Solve.Four squares with sides 3 in. long are cut from the corners of a rectangular metal sheet that has an area of 
The edges are bent up to form an open box with a volume of 
Find the dimensions of the box.
A. Height: 3 in.; length: 16 in.; width: 17 in. B. Height: 3 in.; length: 13 in.; width: 8 in. C. Height: 19 in.; length: 3 in.; width: 14 in. D. Height: 3 in.; length: 22 in.; width: 14 in.
Name the set of inputs (domain) and the set of outputs (range).
Name the set of inputs (domain) and the set of outputs (range). The cost of a long distance telephone call is a function of how long the parties talk. A) {distance}; {units of time} B) {cost of call}; {units of time} C) {units of time}; {cost of call} D) {units of time}; {distance} E) {distance}; {cost of call}
Solve the problem.A rectangular piece of tin has an area of 648 square inches. A square of 3 inches is cut from each corner, and an open box is made by turning up the ends and sides. If the volume of the box is 1080 cubic inches, what were the original dimensions of the piece of tin?
A. 15 in. by 33 in. B. 18 in. by 36 in. C. 12 in. by 27 in. D. 21 in. by 39 in.
Solve the problem.Zippy golf carts obey the demand equation p = - 
x + 4000. The cost of producing x golf carts is given by the function C(x) = 500x + 2000. a) Express the revenue R as a function of x. b) Express the profit P as a function of x. c) Find the value of x that maximizes profit. d) Find the maximum profit.
A. a) R(x) = - 
x2 + 4000x
b) P(x) = - 
x2 + 3500x - 2000
c) 17,500
d) -$2000.00
B. a) R(x) = - 
x2 + 4000x
b) P(x) = - 
x2 + 3500x - 2000
c) 17,500
d) $30,623,000.00
C. a) R(x) = - 
x2 + 4000x
b) P(x) = - 
x2 + 3500x + 2000
c) 17,500
d) $30,627,000.00
D. a) R(x) = 
x2 + 4000x
b) P(x) = 
x2 + 3500x - 2000
c) 19,750
d) $108,129,250.00