Find a formula for the inverse of the function described below.A size 50 dress in Country C is size 9 in Country D. A function that converts dress sizes in Country C to those in Country D is 
A. f-1(x) = 2(x - 16)
B. f-1(x) = 2x + 16
C. f-1(x) = x + 16
D. f-1(x) = 2(x + 16)
Answer: D
Mathematics
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Solve the following system by any appropriate method. If there is no real number solution, so state.x2 + 2y2 = 2x2 - 2y2 = 8
A. (
, 
), (-
, -
)
B. (
, 
), (
, -
), (-
, 
), (-
, -
)
C. (
, 
), (
, -
)
D. no solution
Mathematics
Find the product.(a - 4)(a + 4)
A. a2 - 8 B. a2 - 8a - 16 C. a2 + 8a - 16 D. a2 - 16
Mathematics
Give the equations of any vertical asymptotes.f(x) = 
A. x = 8 B. x = 0, x = -8 C. x = -8 D. x = 1
Mathematics
Use the trigonometric substitution to rewrite the algebraic expression as a trigonometric function of ?, where 
.
?
A. 
B. 
C. 
D. 
E. 
Mathematics