Solve the problem.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 16 minutes requires 11.2 gallons of water. Find the amount of water used in a shower lasting 4 minutes.
A. 64 gal
B. 2.1 gal
C. 2.8 gal
D. 3.5 gal
Answer: C
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Perform the indicated division by synthetic division.(5x3 + 11x2 - 17x - 15) ÷ (x + 3)
A. -5x2 - 3x - 5, R = 0 B. 5x2 + 11x - 17 , R = 0 C. 5x - 4, R = 0 D. 5x2 - 4x - 5, R = 0
Find the unknowns on the right side of the partial fraction decomposition.
= 
+ 
A. A = - 
, B = - 
B. A = 
, B = - 
C. A = 
, B = 
D. A = - 
, B = 
Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum 
, using the indicated point in the kth subinterval for ck.f(x) = cos x + 3, [0, 2?], midpoint
A. 
B. 
C. 
D. 
Provide an appropriate response. Evaluate with a calculator: log4 100
A. 0.6021 B. 25 C. 3.3219 D. 2