Factor the polynomial as a perfect square or state that it is irreducible.4x2 - 28x + 49
A. (2x + 7)2
B. irreducible
C. (2x - 7)(2x + 7)
D. (2x - 7)2
Answer: D
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Express the area of the region bounded by the given line(s) and/or curve(s) as an iterated double integral.The lines 
, 
, and 
A. 
B. 
C. 
D. 
Provide an appropriate response. An 84-lb mixture of two different grades of coffee is worth $306. If grade A is worth $3.75 per pound and grade B is worth $3.50 per pound, how many pounds of grade A were used?
A. 36 lb B. 48 lb C. 42 lb D. 40 lb
Solve the problem.From a point on a river, two boats are driven in opposite directions, one at 8 miles per hour and the other at 13 miles per hour. In how many hours will they be 42 miles apart?
A. 3 hr B. 2 hr C. 4 hr D. 1 hr
The symbolic representation of f and g are given. Use a graph of f and g to estimate the solution of f(x) = g(x). Round to the nearest tenth.f(x) = e0.37x, g(x) = 21
A. -3.1 B. 2.7 C. 4.0 D. 8.2