Use the product and quotient rules, as necessary, to simplify the radical expression.
A. 5
B. 5
C. 
D. 2
Answer: B
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Use the following definitions to determine if the statement is true or false. N = {x : x is a natural number}I = {x : x is an integer}R = {x : x is a real number}W = {x : x is a whole number}Q = {x : x is a rational number}I is a proper subset of N, W, Q, and R.
A. True B. False
Solve the given trigonometric equation by use of a graphing calculator. Use values of x for 0 ? x < 2?.4 cos2 x - 3 = 0
A. 0.52, 3.67 B. 0.72, 5.56 C. 0.52, 2.62, 3.67, 5.76 D. 0.52, 0.72, 3.67, 5.56
Solve the system of equations using substitution.
A. x = 7, y = 0 or (7, 0) B. x = -6, y = 13; x = -7, y = 14 or (-6, 13), (-7, 14) C. x = 6, y = 1; x = 7, y = 0 or (6, 1), (7, 0) D. x = 6, y = 13; x = 7, y = 0 or (6, 13), (7, 0)
Solve the problem.If an object is dropped from a tower, then the velocity, V (in feet per second), of the object after t seconds can be obtained by multiplying t by 32 and adding 10 to the result. Find an equation relating the velocity, V, to the number of seconds, t. Use this equation to find the velocity of the object at time 
A. 268.5 ft/sec B. 269.2 ft/sec C. 267.2 ft/sec D. 270.5 ft/sec