Compare the graph of the given quadratic equation to that of y = x2.y = -5x2
A. Narrower
B. Opens downward and wider
C. Opens downward and narrower
D. Wider
Answer: C
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Use the formula A = P(1 + rt) to find the indicated quantity.A = $16,400; r = 10%; 90 days. Find P.
A. $16,810 B. $16,400 C. $16,000 D. $400.00
Solve the problem.Northwest Molded molds plastic handles which cost $1.00 per handle to mold. The fixed cost to run the molding machine is 
per week. If the company sells the handles for $3.00 each, how many handles must be molded weekly to break even?
A. 1054 handles B. 4216 handles C. 2108 handles D. 1405 handles
Solve the problem.A building contractor's profit (in thousands of dollars) on each unit in a subdivision is a continuous random variable with probability density function f(x) as shown below. f(x) = 
(A) Find the contractor's expected profit. Round to the nearest dollar.(B) Find the median profit. Round to the nearest dollar.
A. (A) $21,667; (B) $21,340 B. (A) $26,667; (B) $25,000 C. (A) $23,333; (B) $22,929 D. (A) $28,333; (B) $26,465
Evaluate.(-1)21
A. -1 B. 1 C. -21 D. 21