Add or subtract as indicated.5
+ 
- 4
A. 
B. 9
+ 
C. 2
D. 
+ 
Answer: D
Mathematics
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Determine whether the statement is true or false.cos 60° = 1 - 2 sin230°
A. True B. False
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Use a vertical format to find the product.y2 + 3y - 9
A. -7y4 - 6y3 - 13y2 - 12y - 63 B. y4 + 2y3 - 16y2 - 30y - 63 C. -7y4 - 21y3 + 63y2 D. y4 + 2y3 - 19y2 - 12y + 63
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Identify the vertex of the parabola.f(x) = (x - 9)2 + 10
A. (9, 10) B. (10, 9) C. (0, 9) D. (10, 0)
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Combine and simplify.
A. 
B. 
C. 
D. 
E. 
Mathematics