Simplify the radical expression. Assume that variables represent positive numbers.
A. 2x4y2
B. 2x4y2
C. 4x8y4
D. 4x4y2
Answer: A
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Write the equation of the line in 
form, given the slope and y-intercept.Slope is - 
; and y-intercept is 4
A. y = - 
x + 4
B. y = - 
x - 4
C. y = 
x - 4
D. y = 
x + 4
Write an algebraic equation and use it to solve the problem.During a road trip, Tonya drove one-third the distance that Lana drove. Mark drove 12 miles more than Lana. The total distance they drove on the trip was 530 miles. How many miles did each person drive?
A. Tonya drove 70 miles, Lana drove 210 miles, and Mark drove 222 miles. B. Tonya drove 222 miles, Lana drove 666 miles, and Mark drove 678 miles. C. Tonya drove 666 miles, Lana drove 222 miles, and Mark drove 210 miles. D. Tonya drove 74 miles, Lana drove 222 miles, and Mark drove 234 miles.
State the degree and leading coefficient of the polynomial function.f(x) = -13x4 - 6x3 - 7x2 + 9
A. Degree: 10; leading coefficient: -13 B. Degree: 4; leading coefficient: -13 C. Degree: 3; leading coefficient: -13 D. Degree: -13; leading coefficient: -7
Solve for the specified variable. Assume that the constants have values for which the equation has exactly one real-number solution.r = 
, for V
A. V = 
B. V = 
C. V = 
D. V = 3?r2h