Find a formula for the inverse of the function described below.A size-8 dress in Country C is size 48 in Country D. A function that converts dress sizes in Country C to those in Country D is 
A. f-1(x) = x - 16
B. f-1(x) = 
+ 16
C. f-1(x) = 
- 16
D. f-1(x) = 
Answer: C
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Find the derivative of the function.f(t) = (6 - t)(6 + t3)-1
A. f '(t) = 
B. f '(t) = 
C. f '(t) = 
D. f '(t) = 
Solve using Cramer's Rule.
A. (0, -6) B. (1, -7) C. (-1, -6) D. No solution
Find: a. The center and radius of the circle. b. The x- and y-intercepts of the graph of the circle.x2 + y2 - 4x + 2y - 7 = 0
A. a. center = (-2, 1); radius = 12
b. (2 + 
, 0), (0, -1 + 2
)
B. a. center = (-2, -1); radius = 2
b. (2 + 
, 0), (0, -1 + 2
)
C. a. center = (2, -1); radius = 2
b. (2 + 
, 0), (2 - 
, 0), (0, -1 + 2), (0, -1 - 2
)
D. a. center = (2, -1); radius = 2
b. (-2 + 
, 0), (-2 - 
, 0), (0, 1 + 2
), (0, 1 - 2
)
Find the number.Seven times a number, added to -6, is -27.
A. 3 B. -21 C. -147 D. -3