Solve the inequality, then graph the solution.10 < -5z ? 30
A. (-6, -2]
B. (2, 6]
C. [-6, -2)
D. [2, 6)
Answer: C
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Solve the problem.A cup of coffee is heated to 194° and is then allowed to cool in a room whose air temperature is 
After 11 minutes, the temperature of the cup of coffee is 
Find the time needed for the coffee to cool to a temperature of 102°. Assume the cooling follows Newton's Law of Cooling: U = T + (Uo - T)ekt.(Round your answer to one decimal place.)
A. 15.1 minutes B. 29.7 minutes C. 26.4 minutes D. 41.1 minutes
Solve the problem.A certain scholarship will pay for 
of a student's total tuition. How much will a student who receives this scholarship pay toward tuition, if tuition is $960?
A. $120 B. $840 C. $946 D. $900
Find the exact value under the given conditions.Given sin ? = 
, with ? in quadrant I, and cos ? = 
, with ? in quadrant I. Find cos (? + ?).
A. 
B. - 
C. - 
D. 
Solve the problem.The amount of time it takes a swimmer to swim a race is inversely proportional to the average speed of the swimmer. A swimmer finishes a race in 30 seconds with an average speed of 5 feet per second. Find the average speed of the swimmer if it takes 25 seconds to finish the race.
A. 8 feet per second B. 6 feet per second C. 7 feet per second D. 5 feet per second