Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.-(-4)-1
A. -4
B. 
C. 4
D. - 
Answer: B
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Provide an appropriate response.Place the digits 1, 2, 3, 7, and 8 in the following boxes so that the greatest product is obtained.
What will be an ideal response?
Solve the problem.A car wheel has a 13-inch radius. Through what angle (to the nearest tenth of a degree) does the wheel turn when the car rolls forward 3 ft?
A. 173.7° B. 163.7° C. 168.7° D. 158.7°
Solve the problem.A force of 4 pounds acts in the direction of 4° to the horizontal. The force moves an object along a straight line from the point (4, 8) to the point (19, 17), with distance measured in feet. Find the work done by the force. Round the answer to one decimal place, if necessary.
A. 95.8 ft-lb B. 17.5 ft-lb C. 70 ft-lb D. 69.8 ft-lb
Use the graph to solve the problem.The graphs of f(x) = x2 + x and g(x) = 20 are shown below. Use the graph to solve x2 + x = 20.
A. 20 B. -5, 4 C. -1, 0 D. -4, 5