Find all values of ? in [0°, 360°) that satisfy the equation.2 sin 2? - 
= 0
A. {30°, 150°, 210°, 330°}
B. {30°, 60°, 210°, 240°}
C. {60°, 120°, 240°, 300°}
D. {60°, 150°, 240°, 300°}
Answer: B
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Solve the problem.Six Republicans and six Democrats orally cast their vote in the U.S. Senate. In how many orders can they vote if they must alternate Republican, Democrat, Republican, Democrat, and so on and if a Republican must always be the first to vote?
A. 12!
B. 6 × 11!
C. 6! × 6!
D. 
E. none of these
Indicate whether the ordered pair is or is not a solution to the given system.
(2, -6)
A. Solution B. Not a solution
Solve using a proportion. Round your answer to the nearest hundredth when necessary.On an architect's blueprint, 1 inch corresponds to 4 feet. Find the length of a wall represented by a line 
inches long on the blueprint. Round to the nearest tenth if necessary.
A. 22.5 feet B. 206.3 feet C. 4.8 feet D. 33 feet
Solve the exponential equation and approximate the result, correct to three decimal places.4 ? 3x - 5 = 18
A. 1.073 B. 1.592 C. 2.049 D. 1.262