Perform the indicated operation and simplify.
- 
+ 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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The function f is one-to-one. Find its inverse.f(x) = 4x + 8
A. f-1(x) = - 
B. f(x) = 
C. f-1(x) = 
D. f-1(x) = 
Mathematics
Find the axis of symmetry of the parabola defined by the given quadratic function.f(x) = x2 + 12x + 7
A. x = 12 B. x = -29 C. x = 6 D. x = -6
Mathematics
Find the equation of the tangent line to the curve when x has the given value.f(x) = 
; x = 4
A. y = - 
+ 
B. y = 
+ 
C. y = -39x - 80
D. y = 13x - 16
Mathematics
Solve. Round to the nearest percent if necessary.Enrollment in a class at a local college increased from 80 to 120. What was the percent of increase?
A. 50% B. 150% C. 33% D. 40%
Mathematics