Solve the equation on the interval [0, 2?).cos2 x - cos x = 0
A. 
, ?
B. 0, 
, ?, 
C. 
, 
D. 0, 
, 
Answer: D
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Substitute the given values into the formula and then evaluate to find the unknown quantity. Label units in your answer. If the answer is not exact, round your answer to the nearest hundredth.I = prt; I = 6.6, p = 110, r = 0.03
A. 2 B. 21.78 C. 0.2178 D. 0.2
Multiply. 
A. 2,011,000 B. 2,001,000 C. 2,000,000 D. 2,002,000
Solve the problem.Determine a polynomial that represents the area of a square having sides of length 
A. 64x2 - 72xy + 81y2 B. 64x2 + 144xy - 81y2 C. 64x2 - 144xy + 81y2 D. 64x2 - 144x + 81y
Set up an equation that can be used to solve the problem. Solve the equation and answer the question asked. A chemist needs 70 milliliters of a 67% solution but has only 52% and 73% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 50 ml of 52%; 20 ml of 73% B. 23 ml of 52%; 47 ml of 73% C. 23 ml of 52%; 50 ml of 73% D. 20 ml of 52%; 50 ml of 73%