Perform the indicated operation and simplify.
? 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.A painter can finish painting a house in 5 hours. Her assistant takes 7 hours to finish the same job. How long would it take for them to complete the job if they were working together?
A. 2
hr
B. 
hr
C. 6 hr
D. 4 hr
Mathematics
Find the exact value of the expression.cot-1 
A. 
B. 
C. 
D. 
Mathematics
Round the decimal to the given place value.27.9843, nearest hundredth
A. 27.9843 B. 27.88 C. 28.08 D. 27.98
Mathematics
Find the present value of the future amount. Assume 365 days in a year. Round to the nearest cent.$16,000 for 6 months; money earns 6.9%
A. $14,967.26 B. $15,552.86 C. $15,931.00 D. $15,466.41
Mathematics