Find the exact value of the expression.cos 
cos 
- sin 
sin 
A. 0
B. 1
C. -1
D. 
Answer: A
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Solve by using the quadratic formula.5x2 - 34x - 7 = 0
A. - 
, 
B. - 
, 7
C. - 
, 5
D. -5, 7
Solve the variation problem.The time in hours it takes a satellite to complete an orbit around the earth varies directly as the radius of the orbit (from the center of the earth) and inversely as the orbital velocity. If a satellite completes an orbit 
above the earth in 
at a velocity of 
how long would it take a satellite to complete an orbit if it is at 
-4.0px;" /> above the earth at a velocity of 
Use 
as the radius of the earth, and round your answer to the nearest hundredth of an hour.
A. 18.23 hours
B. 11.61 hours
C. 3.03 hours
D. 116.07 hours
Solve the logarithmic equation symbolically.log x5 = 4 + 2 log x
A. x = 5106
B. x = 106/5
C. x = 104/3
D. x = 
A new car dealership has taken an inventory of the vehicles it has in stock. Below is a histogram indicating the number of vehicles in stock in certain price ranges. Use the histogram to answer the question.
What percent of the 75 vehicles in stock were priced less than $28,000?
A. 60% B. 33.3% C. 26.7% D. 66.7%