Determine whether the given function is one-to-one. If it is one-to-one, find a formula for the inverse.f(x) = x 
A. f-1(x) = x 
B. f-1(x) = x3 - 9
C. Not one-to-one
D. f-1(x) = x2 + 9
Answer: C
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Provide an appropriate response.A student turned in the following work in multiplying two numbers on a test paper. Can you decide what was done incorrectly and then give the correct answer?25.6×2.41024512 614.4
What will be an ideal response?
Solve the formula for the specified variable.S = 
for r
A. r = 
- 1
B. r = S - a
C. r = 
D. r = 
Use the Midpoint Rule with n = 4 to approximate the area of the region bounded by the graph of 
and the x-axis over the interval 
. Round your answer to 4 decimal places.
?
A. 7.3013 B. 6.0475 C. 6.4900 D. 7.3750 E. 7.8913
Use the graph shown to determine if the limit exists. If it does, find its value.
f(x)
A. 5 B. 4 C. 3 D. does not exist