Identify the units you would expect for the given quantity.The amount of electricity utilized, calculated by multiplying power in kilowatts by time in hours.
A. kilowatts per hour
B. kilowatts per second
C. kilowatt-hours
D. hours per kilowatt
Answer: C
Mathematics
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Simplify using order of operations.(-6)2 ? (7 - 10)2 ÷ 33
A. 12 B. 28 C. -12 D. -28
Mathematics
Solve the absolute value equation.
= |2x + 5|
A. x = - 
, 
B. x = 
, 
C. x = - 
, - 
D. no solution
Mathematics
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.ln 
A. 
ln x
B. x ln 8
C. 8ln 
D. 8ln x
Mathematics
Solve the problem.One pump can drain a pool in 6 minutes. When a second pump is also used, the pool only takes 4 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump in use?
A. 22 min
B. 12 min
C. 
min
D. 2
min
Mathematics