Solve the problem.A force acts on a certain object in such a way that when the object has moved a distance of r (in m), the force f (in newtons) is given by 
Find the work (in joules) done through the first four meters.
A. 218.7 J
B. 64 J
C. 176.7 J
D. 40 J
Answer: A
Mathematics
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Use a vertical format to add the polynomials.2y5 - 8y4 
A. 7y18 B. 10y10 - 3y8 C. 7y9 D. 10y5 - 3y4
Mathematics
Find an equation of the line through the point (8, 16) that cuts off the least area from the first quadrant.
What will be an ideal response?
Mathematics
Solve the problem.The equation V = -3000t + 21,000 describes the value in dollars of a certain model of car after it is t years old. If a car is worth $12,000, find the age of the car.
A. 2 yr B. 5 yr C. 3 yr D. 4 yr
Mathematics
Perform the indicated operation and express in lowest terms.
- 
+ 
A. 
B. 
C. 
D. 
Mathematics