Solve the problem. Round your answer, if appropriate.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 by evaluating 
A. 64 joules
B. 71 joules
C. 40 joules
D. 120 joules
Answer: D
Mathematics
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Find the limit, if it exists.
(x2 - 16 + 
)
A. 4 B. Does not exist C. -10 D. -4
Mathematics
Write the percent as a fraction or mixed number in simplest form.400%
A. 8 B. 2 C. 4 D. 40
Mathematics
Determine which value(s), if any, must be excluded from the domain of the variable in the expression.
A. x = 0 B. x = 2 C. x = -2 D. none
Mathematics
Determine any data values that are missing from the table, assuming that the data represent a linear function.
A. 6 B. 18 C. 20 D. 14
Mathematics