Simplify the rational expression.
A. 
B. 
C. 
D. 
Answer: B
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For the function f, use composition of functions to show that f-1 is as given.
, 
What will be an ideal response?
State if the vectors a and b are perpendicular, parallel, or neither. If a and b are parallel, state whether they point in the same direction or in opposite directions.a = 
, b = 
A. Parallel, same direction B. Perpendicular C. Parallel, opposite directions D. Neither
Solve the problem. Assume all data are accurate to two significant digits unless greater accuracy is given.Two cities are 81.4km apart. Vehicle A leaves one city at the same time vehicle B leaves the other. Find the speed of vehicle A if it travels 6.5 km/h faster than vehicle B and if they pass in 14.7 minutes.
A. 6.0 km/h B. 169.4 km/h C. 166.3 km/h D. 162.9 km/h
Solve using the percentage formula.39.5% of 2,400 is what number?
A. 948 B. 1,472 C. 1,452 D. 1,200