Simplify the exponential expression. Assume that variables represent nonzero real numbers.23 ? 5
A. 40
B. 13
C. 1000
D. 30
Answer: A
Mathematics
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Use De Moivre's theorem to simplify the expression. Write the answer in the form a + bi.
4
A. -4 B. -4i C. 4i D. 4
Mathematics
Solve the formula for the specified variable.S = 2?rh + 2?r2 for h
A. h = 
B. h = S - r
C. h = 2?(S - r)
D. h = 
Mathematics
Solve the problem.Maria and Charlie can deliver 80 papers in 4 hours. How long would it take them to deliver 58 papers?
A. 3.6 hr B. 2.9 hr C. 232 hr D. 5.5 hr
Mathematics
Provide an appropriate response.What is the first step to solve an equation in the form 
x = 
? What is the solution of the equation?
What will be an ideal response?
Mathematics