Evaluate the given expression.sin
A. -1
B. 1
C. 
D. - 
Answer: C
Mathematics
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Factor.x2 + 3xy - 28y2
A. (x + 7y)(x - 4y) B. (x - 7y)(x + y) C. (x - 7y)(x + 4y) D. (x - y)(x + 4y)
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Factor completely.x2 + 16x + 64
A. Prime B. (x + 8)(x - 8) C. (x + 8)2 D. (x - 8)2
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If (a, b, c) is a Pythagorean triple, then so is:
(a) (3a, 4b, 5c). (b) (3a, 3b, 3c). (c) (6a, 6b, 6c). (d) Both (a) and (b) are correct. (e) Both (b) and (c) are correct.
Mathematics
Write with radicals. Assume that all variables represent positive real numbers.91/2
A. 3
B. 4.5
C. 
D. 
Mathematics