Use the Half-angle Formulas to find the exact value of the trigonometric function. tan 75°
A. -2 + 
B. 2 + 
C. 2 - 
D. -2 - 
Answer: B
Mathematics
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Solve the problem.How many three-digit counting numbers do not contain any of the digits 1, 5, 7, 8, or 9?
A. 48 numbers B. 125 numbers C. 64 numbers D. 100 numbers
Mathematics
Solve the equation using the multiplication property of equality.9a = -81
A. {1} B. {90} C. {-9} D. {-90}
Mathematics
For the triangle described below, solve for B.
?
Apply the rules regarding the use of significant digits to each angle and length after all computations are complete.
?
ft, 
ft
?
A. 
or 
B. 
C. 
or 
D. 
E. no solution
Mathematics
Change to a percent. Round to the nearest hundredth of a percent when necessary.
A. 1.82% B. 55% C. 18.18% D. 5.5%
Mathematics