Simplify the sum.(x + 3) + (x - 15)
A. 2x - 18
B. 2x + 12
C. 2x - 12
D. 2x + 18
Answer: C
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Read the following vernier protractor.
A. 69°15' B. 72°15' C. 63°15' D. 71°15'
Find parametric equations for the line described below.The line through the point P(-5, 2, 3) parallel to the vector 
A. x = -8t + 5, y =6t - 2, z = -3t - 3 B. x = 8t + 5, y = 6t - 2, z = -3t - 3 C. x = -8t - 5, y = 6t + 2, z = -3t + 3 D. x = 8t - 5, y = 6t + 2, z = -3t + 3
Solve the problem.Determine the actual and relative error.MEASUREMENTTRUE VALUEERRORRELATIVE ERROR(as a percent)34.5 mg37.5 mg??
A. -3.5 mg; 8% B. -3 mg; 0.8% C. -3 mg; 0.08% D. -3 mg; 8%
Solve the problem.A woman invested $2000 at 7% (or 0.07) for 8 years. How much did she have in her account at the end of 8 years? 
A. $112 B. $3120 C. $1120 D. $2240