Find a formula for the inverse of the function described below.A size 10 dress in Country C is size 40 in Country D. A function that converts dress sizes in Country C to those in Country D is 
A. f-1(x) = x + 30
B. f-1(x) = x - 30
C. f-1(x) = 
D. f-1(x) = 
Answer: B
Mathematics
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Solve the equation.
- x = 6
A. ? B. {-3} C. {-7} D. {-7, -3}
Mathematics
Write the equation for the circle described.Center at (-6, 0), radius 10
A. x2 + (y + 6)2 = 10 B. (x - 6)2 + y2 = 100 C. x2 + (y - 6)2 = 10 D. (x + 6)2 + y2 = 100
Mathematics
Add and write the resulting polynomial in descending order of degree.(3x8 - 7x4 + 2x2 + 2) + (4x7 + 4x4 - 7x)
A. 7x8 - 3x4 + 2x2 - 7x + 2 B. 3x8 + 4x7 - 3x4 + 2x2 - 7x + 2 C. 7x8 - 11x4 + 2x2 - 7x + 2 D. 3x8 + 4x7 + 3x4 + 2x2 - 7x + 2
Mathematics
Convert.974 cm = _____ m
A. 9.74 B. 97,400 C. 9740 D. 97.4
Mathematics