Use a double angle formula to rewrite the given expression.
A. 
B. 
?
C.
?
D.
?
E.
?
Answer: B
Mathematics
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Perform the indicated operation.
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve.How many cubic feet of concrete is needed to pour the building foundation shown in the figure? 
A. 1325 ft3 B. 6775 ft3 C. 4592 ft3 D. 2258 ft3
Mathematics
Find all values that make the rational expression undefined. If the rational expression is defined for all real numbers, so state.
A. z = 6 B. z = 0 C. z = -6 D. Defined for all real numbers
Mathematics
Use the table to find the effective interest rate.
Find the effective interest rate for a loan for four years compounded monthly at an annual rate of 6%. Use the table method.
A. 6.12% B. 6.26% C. 6.23% D. 6.17%
Mathematics