Find the work performed when the given force F is applied to an object, whose resulting motion is represented by the displacement vector d. Assume the force is in pounds and the displacement is measured in feet.
?
?
A. 160 ft-lb
B. 230 ft-lb
C. 170 ft-lb
D. 190 ft-lb
E. 200 ft-lb
Answer: D
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The temperature of an oven remains constant at 391 degrees Fahrenheit. A potato is placed in the oven to bake. The difference between the temperature of the oven and that of the potato after t minutes in the oven is given by 
degrees Fahrenheit. Write a formula that gives the temperature T, in degrees Fahrenheit, of the potato after t minutes in the oven.
?
A. 
B. ?
C. ?
D. ?
Graph the equation using a graphing calculator.r = sin 4? + 3
A. 
B. 
C. 
D. 
Find the intercepts and graph.9x + y = 0
A. 
B. 
C. 
D. 
Solve the problem.You have x dollars. You and a friend split a pizza, and your share is 
. You have 
left. With how much money did you start?
A. $10.20 B. $3.44 C. $6.76 D. $3.32