Solve the inequality. Describe the solution set using inequality notation.-x + 15 ? 3
A. x < 12
B. x ? 12
C. x > 12
D. x ? 12
Answer: D
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Solve the problem.A load L (in N) is distributed along a beam 10 m long such that L = 24x - 0.4x2, where x is the distance from one end of the beam. Find the expression for the instantaneous rate of change of L with respect to x.
A. 24 - 0.8x B. 24x - 0.8x2 C. -0.8x D. 24 - 0.4x
A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true.Sn: 4 + 9 + 14 + . . . + (5n - 1) = 
What will be an ideal response?
Determine which of the graphs is the graph of the equation.f(x) = -4x3 + 2x2 + 2x + 1
A. 
B. 
C. 
D. 
Use a calculator to find the following. Round your answer to four places past the decimal point. ? sec 30°48' ?
A. 1.2872 B. 1.1642 C. 1.0972 D. -0.9662 E. 1.3182