Use a double-angle identity to find the exact value of the expression.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Combine the following, if possible.
+ 
+ 
+ 12
A. 128
B. 12
+ 116
C. 12
+ 17
D. 74
+ 1036
Mathematics
Simplify the expression. Assume that variables represent nonzero numbers.(w3)2(5w3)
A. 5w9 B. w8 + 5 C. 5w18 D. 5w8
Mathematics
Solve the system of equations using Cramer's Rule, if applicable.
A. ?
B. (4, -3)
C. {(x,y) 
D. (-3, 4)
Mathematics
Use the circle graph to answer the question.Last year, one family ate fast food 576 times. The circle graph shows the types of food eaten for the year. Find the number of times fish was eaten.
A. 144 times B. 36 times C. 192 times D. 72 times
Mathematics