The given function is one-to-one. Find f-1(x).f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Answer: B
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Convert. Round to the nearest tenth unless otherwise indicated.The morning temperature dropped to 45°F. What is this temperature in degrees Celsius?
A. 113.0°C B. 7.0°C C. 7.2°C D. 49.0°C
Solve the problem.An arrow is fired into the air with an initial velocity of 160 feet per second. The height in feet of the arrow t seconds after it was shot into the air is given by the function 
Find the maximum height of the arrow.
A. 80 ft B. 720 ft C. 1200 ft D. 400 ft
Write the phrase as a mathematical expression. Use x to represent the number. Combine like terms if possible.9 times a number added to -9, added to 6 times the sum of 5 times the number 
A. 9x - 9 + 6(5 + 4x); 33x + 39 B. 9(-9 + x) + 6(5 + 4x); 13x - 51 C. 6(5x + 4) + [9x + (-9)]; 39x + 15 D. 9(-9 + x) + 6(5x + 4); 39x - 77
Solve the problem.In a lab experiment 7 grams of acid were produced in 23 minutes and 11 grams in 48 minutes. Let y be the grams produced in x minutes. Write a linear equation for grams produced.
A. y = - 
x - 
B. y = 
x - 
C. y = 
x + 
D. y = 
x - 