Solve the problem.Let f(x) compute the time in hours to travel x miles at 46 miles per hour. What is the interpretation of 
A. The hours taken to travel 46 miles
B. The miles traveled in 7 hours
C. The miles traveled in 46 hours
D. The hours taken to travel 7 miles
Answer: B
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Use the Concavity Theorem to determine where the given function is concave up and where it is concave down. Also find all inflection points.f(x) = x2 - 16x + 69
A. Concave up on (8, ?), concave down on (-?, 8); inflection point (8, 5) B. Concave up on (-?, 8), concave down on (8, ?); inflection point (8, 5) C. Concave down for all x; no inflection points D. Concave up for all x; no inflection points
Evaluate the expression by first changing the form. Verify the answer by use of a calculator. sin 190° cos 70° - cos 190° sin 70°
A. - 
B. - 
C. 
D. - 
Solve and graph. Write the solution in interval notation. 
< 2.4
A. 
? 
B. 
C. 
D. 
Multiply and, if possible, simplify.
A. 
B. 
C. 
D. 