Use a graphing utility to graph the function over the indicated interval and approximate any local maxima and local minima. If necessary, round answers to two decimal places.f(x) = 2 + 8x - x2; (-5, 5)
A. local minimum at (4, 50)
B. local minimum at (-4, 18)
C. local maximum at (-4, 50)
D. local maximum at (4, 18)
Answer: D
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Determine the limit by sketching an appropriate graph.
f(x), where f(x) = 
A. Does not exist
B. 
C. 0
D. 1
Solve.The amount of water used to take a shower is directly proportional to the amount of time that the shower is in use. A shower lasting 24 minutes requires 9.6 gallons of water. Find the amount of water used in a shower lasting 5 minutes.
A. 12.5 gallons B. 2 gallons C. 1.92 gallons D. 46.08 gallons
Solve.A brother and sister split the $1,113,000 from the sale of their parent's house. According to the will, the sister was to receive 10% more than her brother, for having managed the property. How much money did the sister receive?
A. $530,000 B. $583,000 C. $111,300 D. $11,130,000
Simplify.
A. 6z4
B. 6z4
C. 5z4
D. 5z4