Simplify the expression.
-2/3
A. not a real number
B. - 
C. 
D. 
Answer: C
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Determine the maximum number of turning points of f.f(x) = 9x - x3
A. 2 B. 1 C. 4 D. 3
Solve the problem. Round to the nearest tenth unless indicated otherwise.Wind resistance or atmospheric drag tends to slow down moving objects. Atmospheric drag varies jointly as an object's surface area A and velocity v. If a car traveling at a speed of 50 mph with a surface area of 36 ft2 experiences a drag of 270 N (Newtons), how fast must a car with 35 ft2 of surface area travel in order to experience a drag force of 231 N?
A. 41 mph B. 46 mph C. 49 mph D. 44 mph
Use the given conditions to find an equation in slope-intercept form of each of the nonvertical lines. Write vertical lines in the form x = h.Parallel to -7x + 2y = -33; passing through (7, 11)
A. y = 
x - 
B. y = 
x - 
C. y = - 
x - 
D. y = - 
x + 
Solve by factoring and using the principle of zero products.x(x - 2) = 80
A. 8, 10 B. 8, -10 C. 0, 2 D. -8, 10