Solve the problem.A college student invests $8000 in an account paying 
per year compounded annually. In how many years will the amount at least double? Round to the nearest tenth when necessary.
A. 11.9 yr
B. 9 yr
C. 16.3 yr
D. 14.3 yr
Answer: B
Mathematics
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Evaluate the integral.
A. 
sin 4t - 
sin 12t + C
B. 
sin 4t - 
cos 12t + C
C. 
sin 4t + 
sin 12t + C
D. 
sin 8t - 
sin 4t + C
Mathematics
Evaluate the integral.
A. -4i + 
j + 40k
B. +4i + 
j + 40k
C. -4i - 
j - 40k
D. -4i - 
j + 40k
Mathematics
Solve the problem.Jason is paid $500 per month plus a commission of 4% of the first $2,500 of his sales, and 6% of his sales over $2,500. Last month his sales totaled $18,100. Find Jason's gross pay for the month.
A. $1536.00 B. $3396.00 C. $2310.00 D. $1686.00
Mathematics
Solve the problem.A machine can fill 2388 cartons of milk in 0.4 hour. How many cartons of milk can it fill per hour?
A. 2388 cartons/hour B. 955 cartons/hour C. 4776 cartons/hour D. 5970 cartons/hour
Mathematics