Simplify using the product rule.(-2x5y8)(-4x2z4)
A. 8x7y8z4
B. -6x7y12
C. -8x7y8z4
D. 8x10y8z4
Answer: A
Mathematics
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A. 10 B. 4 C. -2 D. 2
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Solve the problem.A loaf of bread is removed from an oven at 
and cooled in a room whose temperature is 
. If the bread cools to 
in 20 minutes, how much longer will it take the bread to cool to 
A. 9 min B. 20 min C. 8 min D. 28 min
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Factor completely.x4 + 2x3y - 3x2y2
A. x2(x - 3y)(x - y) B. x2(x - 3y)(x + y) C. x2(x + 3y)(x - y) D. x(x + 3y)(x - y)
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Use the given values of the variable to make a horizontal table of solutions for the equation.x + y = 10, y = -7, 0, 7, 8
A. 
B. 
C. 
D. 
Mathematics