Find the exact value in radians.cot-1 
A. 0
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.Frank can type a report in 3 hours and James takes 5 hours. How long will it take the two of them typing together?
A. 
hr
B. 
hr
C. 
hr
D. 5 hr
Mathematics
Use the quadratic formula to solve the quadratic equation.2x2 = 30
A. 16
B. ±
C. ±15
D. 15
Mathematics
Evaluate the expression for the given replacement values.x - z for x = 4.8, z = 0.77
A. 5.57 B. 4.03 C. -4.03 D. 3.93
Mathematics
Write as a unit rate. Round to the nearest tenth, if necessary.2580 kilowatts in 20 days
A. 129 days per kilowatt B. 20 kilowatts per day C. 129 kilowatts per day D. 2580 kilowatts for every 20 days
Mathematics