Evaluate.Given f(x) = x2 + 5x + 7, find f(1).
A. -1
B. 13
C. -11
D. 3
Answer: B
Mathematics
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Solve the problem.State whether the vectors v = i + 
j and w = i - 4j are orthogonal.
A. orthogonal B. not orthogonal
Mathematics
Solve the problem.The concentration of a certain drug in the bloodstream x hr after being administered is approximately 
Use the differential to approximate the change in concentration as x changes from 1 to 1.47.
A. 0.64 B. 0.2 C. 0.3 D. 0.29
Mathematics
Write the percent equation. Do not solve.What percent of 45 is 6?
A. P = 45 ? 6 B. P ? 0.45 = 6 C. P ? 45 = 6 D. P = 0.45 ? 6
Mathematics
Rationalize the denominator and simplify. Assume that variables represent positive values.
A. 
B. 
C. 
D. 
Mathematics