Solve the problem.A size 44 dress in Country C is size 2 in Country D. A function that converts dress sizes in Country C to those in Country D is 
Find a formula for the inverse of this function.
A. f-1(x) = x + 20
B. f-1(x) = 2(x - 20)
C. f-1(x) = 2x + 20
D. f-1(x) = 2(x + 20)
Answer: D
Mathematics
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Find the length of the indicated portion of the curve.r(t) = (4cos t)i + (4sin t)j + 5tk, 0 ? t ? ?/2
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
Find the intersection.8x - 4y - 6z = 6, -6x - 4y + 3z = 7
A. x = -36t - 
, y = 12t - 
, z = -56t
B. x = 2016t - 4, y = -672t - 92, z = 56t
C. x = 36t + 4, y = -12t + 92, z = 56t
D. x = -36t - 4, y = 12t + 92, z = 56t
Mathematics
Solve the problem.Given 3x + 4y = -8, solve for x and find the value of x when y = -11.
A. x = 
; x = - 
B. x = 
; x = -12
C. x = 
; x = 12
D. x = 
; x = 
Mathematics
Simplify by removing grouping symbols and combining like terms.7{5y2 + 2[6y2 - (y + z2)]}
A. 119y2 - 7y + 7z2 B. 47y2 - 2y - 2z2 C. 119y2 - 14y - 14z2 D. 105y2 - 14y
Mathematics