Solve.A painter can paint a wall at a rate of 160 sq ft. per hour. How many hours will he take to paint 2240 sq ft. of walls?
Fill in the blank(s) with the appropriate word(s).
14 hours
2240 sq ft / 160 sq ft / hr = 2240 sq ft x 1 hr/60 sq ft = 14 hr
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List the given numbers in order from least to greatest.
, -1
, - 0.8, 2.91, -4, 
A. -4, - 0.8, -1
, 
, 
, 2.91
B. -4, -1
, 
, - 0.8, 
, 2.91
C. -4, -1
, - 0.8, 
, 
, 2.91
D. -4, - 0.8, 
, -1
, 
, 2.91
The table below shows Joe's golf scores from Saturday.
What kind of variable is a golf score?
A. qualitative and continuous B. qualitative and discrete C. quantitative and discrete D. quantitative and continuous E. none of these
Use the root test to determine if the series converges or diverges.
A. Converges B. Diverges
Solve the problem.A nuclear scientist has a sample of 
of a radioactive material which has a half-life in hours. She monitors the amount of radioactive material over a period of a day and obtains the following data. Use a graphing utility to fit an exponential function to the data. Predict the amount of material remaining at 40 hours.
.
A. y = 86e-0.071x, 5.0 mg B. y = 100e-0.077x, 4.6 mg C. y = 92e-0.0686x, 5.9 mg D. y = 100e-0.077x, 6.7 mg