Multiply.(7x3y)(-8x4y5)
A. 56x7y5
B. -56x7y5
C. -56x12y5
D. -56x7y6
Answer: D
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Solve the problem.Select the correct statement for the definition of the limit: 
f(x) = L means that __________________
A. if given any number ? > 0, there exists a number ? > 0, such that for all x,
0 < 
< ? implies 
> ?.
B. if given any number ? > 0, there exists a number ? > 0, such that for all x,
0 < 
< ? implies 
< ?.
C. if given a number ? > 0, there exists a number ? > 0, such that for all x,
0 < 
< ? implies 
> ?.
D. if given any number ? > 0, there exists a number ? > 0, such that for all x,
0 < 
< ? implies 
< ?.
Answer the question.Suppose that a problem asks you to find the height of a triangle, and that the problem leads to a quadratic equation. If h represents the height of the triangle, which of the following solutions to the equation cannot be an answer to the problem?
A. h = 
B. h = 1 - 
C. h = 1 + 
D. h = 
Simplify by removing a factor equal to 1.
A. 
B. 
C. 
D. 
Classify the statement as true or false.{5, 8} ? {6, 8, 10, 12}
A. True B. False