Find the square root. Do not use a calculator or a square root table.0.0081
A. 0.09
B. 9
C. 0.009
D. 0.81
Answer: A
Mathematics
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Use De Moivre's theorem to simplify the expression. Write the answer in the form a + bi.(cos 30° + i sin 30°)6
A. -1 B. i C. -i D. 1
Mathematics
Add.- 529 + 272
A. 257 B. 157 C. -801 D. - 257
Mathematics
Graph the function.f(x) = 4
A. 
B. 
C. 
D. 
Mathematics
Solve.A section of roller coaster track has the dimensions shown in the diagram. Find the grade of the track, which is the slope written as a percent. 
A. 45% B. 11.6% C. 40% D. 3%
Mathematics