Use a product-to-sum identity to rewrite the expression.sin 
cos 
A. 0.5
B. 0.5
C. 0.5
D. 0.5
Answer: A
Mathematics
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Factor out the GCF from the polynomial.80x7y8 - 48x5y5 - 24x3y2
A. 8(10x7y8 - 6x5y5 - 3x3y2) B. 8x3y2(10x4y6 - 6x2y3 - 3) C. 8x3(10x4y8 - 6x2y5 - 3y2) D. -8x3y2(-10x4y6 - 6x2y3 + 3)
Mathematics
Perform the indicated operations. Write the result using a radical. Assume that all variables represent positive values.
? 
A. 
B. 
C. 
D. 
Mathematics
Simplify the algebraic expression, or state that the expression cannot be simplified.7x3 - 5x2
A. 6x B. 2x3 C. cannot be simplified D. 2x6
Mathematics
Factor completely. If the polynomial cannot be factored, say it is prime.15x3 - 13x2 - 20x
A. x(5x + 4)(3x - 5) B. x(3x + 4)(5x - 5) C. x2(5x + 4)(3x - 5) D. (5x2 + 4)(3x - 5)
Mathematics