Write as an equivalent addition statement. (Do not evaluate.)14 - (-20)
A. 20 + (-14)
B. 14 + 20
C. -20 + (-14)
D. 14 + (-20)
Answer: B
Mathematics
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Determine whether the function is one-to-one. If so, find a formula for the inverse.f(x) = 
A. f-1(x) = 
B. f-1(x) = x2 + 6, x ? 0
C. f-1(x) = (x - 6)2
D. Not a one-to-one function
Mathematics
Write the number in scientific notation.9,002,000,000
A. 9.02 × 109 B. 9.002 × 1010 C. 9.002 × 108 D. 9.002 × 109
Mathematics
The function f is one-to-one. Find its inverse.f(x) = x2 + 2, x ? 0
A. f-1(x) = 
- 2, x ? 0
B. f-1(x) = 
, x ? 2
C. f-1(x) = 
, x ? -2
D. f-1(x) = 
- 2, x < 0
Mathematics
Use a proportion to solve the problem.Joan can mow a 6-acre field in 4 hours. How long would it take her to mow a 3.6-acre field?
A. 4.4 hours B. 0.6 hour C. 2.4 hour(s) D. 5.4 hours
Mathematics