Factor by grouping.y2 + 4y + 9y + 36
A. (y + 4)(y + 9)
B. y(y + 49)
C. (y - 4)(y - 9)
D. (y + 4)(y - 9)
Answer: A
Mathematics
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A. ? = sinh2 t
B. ? = cosh2 t
C. ? = 
D. ? = 
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P(E) is the probability of an event E occurring, and O(E) is the odds of an event E occurring. Solve the following problem.If O(E)=7:4, find P(E).
A. 
B. 
C. 
D. 
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Solve the problem.Express the indicated sum as a fraction of whole numbers in lowest terms.
+ 
+ 
+ ... + 
A. 
B. 
C. 
D. 
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Factor the trigonometric expression.100 csc4y - 20 csc2 y + 1
A. (10 csc2 y - 1)(10 csc2 y + 1) B. (10 csc2 y - 1)2 C. (10 - csc2 y)(10 + csc2 y) D. (10 - csc2 y)2
Mathematics