If f is one-to-one, find an equation for its inverse.f(x) = x3 + 7
A. f-1(x) = 
B. f-1(x) = 
- 7
C. f-1(x) = 
D. Not a one-to-one function
Answer: A
Mathematics
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Provide an appropriate response.The Consumer Price Index is increasing at a rate of 8% per year. What is its doubling time? Use the approximate doubling time formula (rule of 70).
A. 256 years B. 5.6 years C. 16 years D. 8.75 years
Mathematics
Simplify.4[(8 - 4)2 + (21 - 19)2] + 15
A. 4 B. 95 C. 140 D. 65
Mathematics
Perform the indicated operation and simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics
Use the given information to write an equation. Let x represent the number described in the exercise. Then solve the equation and find the number.The sum of a number and forty-four is fifty.
A. x - 44 = 50; 94 B. 44x = 50; 1.14 C. x ÷ 44 = 50; 2200 D. x + 44 = 50; 6
Mathematics