Find the exact value by using a half-angle identity.sin 22.5°

A. -  
B.  
C.  
D. -  


Answer: C

Mathematics

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Find the probability.If you are dealt two cards successively (with replacement of the first) from a standard 52-card deck, find the probability of getting a face card on the first card and an ace on the second.

A.
B.  
C.  
D.  

Mathematics

Complete the ordered pair for the given equation.y = -x + 1(-1, )

A. (-1, 2) B. (-1, -2) C. (-1, 3) D. (-1, -3)

Mathematics

Find the solution(s) (if any) of the system of equations by the graphical method. If the equations are dependent, write your answer with x being arbitrary.

A. {(0, 9)} B. {(x, 9 - 3x)} C. {(5, -6)} D. inconsistent

Mathematics

Find the simple interest on the loan.Principal = $87,900Rate = 7%Time in months = 7

A. $879.00 B. $43,071.00 C. $3589.25 D. $358,925.00

Mathematics