Solve the inequality by the test-point method. Write the solution in interval notation.(x + 10)(x - 2)(x - 4) > 0
A. (4, ?)
B. (-?, -10) ? (2, 4)
C. (-10, 2) ? (4, ?)
D. (-?, 2)
Answer: C
Mathematics
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Use the square root property to solve the equation.x2 = 135
A. 
B. 15
C. -3
, 3
D. 3
Mathematics
Solve the problem.The motion of a spring-mass system is described by the equation 
where y is the distance in feet from the equilibrium position and t is time in seconds. If the weight is 22 feet from the ceiling in a state of equilibrium, find the distance from the ceiling at time t = 2.
A. 20 ft B. 22 ft C. 16 ft D. 18 ft
Mathematics
Use mathematical induction to prove the following.1 ? 3 + 2 ? 4 + 3 ? 5 + . . . + n(n + 2) = 
What will be an ideal response?
Mathematics
Evaluate the function f at the indicated value.
{4x + 1, if x < 17x, if 7 ? x ? 117 - 8x, if x > 11
A. -49 B. 89 C. 5 D. 49
Mathematics