Find a formula for the inverse of the function described below.32° Fahrenheit = 0° Celsius. A function that converts temperatures in Fahrenheit to those in Celsius is 
.
A. f-1(x) = x + 32
B. f-1(x) = 
x - 32
C. f-1(x) = 
x + 32
D. f-1(x) = 
(x - 32)
Answer: C
Mathematics
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Determine the real solutions to the system of nonlinear equations.2x2 + xy - y2 = 3x2 + 2xy + y2 = 3
A. 
, 
B. 
, 
C. 
, 
D. 
, 
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The simple interest note was discounted at 12%. Find the discount period in days and the proceeds to the nearest cent. A year is assumed to have 360 days for all calculations. Loan made: April 13Face value: $800Length of loan: 150 daysSimple interest rate: 10%Date of discount: June 13
A. 90 days, $779.17 B. 90 days, $812.50 C. 89 days, $808.61 D. 89 days, $775.28
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Find the indefinite integral 
and check your result by differentiation.
?
A. 
B. 
C. 
D. 
E. 
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Sketch the graph of the function.f(x) = 
A. 
B. 
C. 
D. 
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