Determine whether it is true or false that the given number is a solution of the equation.48; 
= -4
A. True
B. False
Answer: B
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Solve the problem.Suppose that the velocity of a falling body is v = 
(k a constant) at the instant the body has fallen s meters from its starting point. Find the body's acceleration as a function of s.
A. a = 
B. a = - 
C. a = - 
D. a = - 
Factor by grouping.9x2 + x - 8
A. (9x - 1)(x + 8) B. (9x - 8)(x + 1) C. (9x + 8)(x - 1) D. (9x + 1)(x - 8)
If possible, solve each system by an algebraic method (substitution or addition method). Otherwise, state that the problem has no solution or an infinite number of solutions.
x - 2y = 1x - 18y = 9
A. (9, -1) B. (1, -9) C. Infinite number of solutions D. No solution
Solve the system analytically. x - y + 5z = 53x + z = 0 x + 3y + z = -15
A. {(0, 0, -5)} B. {(0, -5, 0)} C. {(0, -5, 5)} D. ?