Use Descartes' Rule of Signs and the Rational Zeros Theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x) = 4x3 + 19x2 - 8x + 15
A. -1, 
, 5; f(x) = (4x - 3)(x - 5)(x + 1)
B. -1, 
, -5; f(x) = (4x - 3)(x - 5)(x + 1)
C. 1, 
, -5; f(x) = (4x - 3)(x - 1)(x + 5)
D. -5, 
, 1; f(x) = (4x - 3)(x - 1)(x + 5)
Answer: A
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Set up the percent proportion, and write "unknown" for the value that is not given. Recall that the percent proportion is 
= 
. Do not try to solve for any unknowns.43.8% of 70 is what?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Solve the variation 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 22 minutes requires 15.4 gallons of water. Find the amount of water used in a shower lasting 4 minutes.
A. 3.5 gallons B. 2.1 gallons C. 2.8 gallons D. 88 gallons
Solve the inequality. Graph the solution set and write the solution set in set-builder notation.(x - 9)(x + 3) > 0
A. {x 
B. {x 
C. {x 
D. {x 
State whether the given measurements determine zero, one, or two triangles.C = 33°, a = 24, c = 29
A. Two B. Zero C. One