Assume that the expressions given are denominators of fractions. Find the least common denominator. 20xy, 8x2

A. 40x2y
B. 40xy2
C. 40xy3
D. 40x3y

Answer: A

Mathematics

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Find the x-intercept(s) and the y-intercept of the function.h(x) = x2 - 7x + 10

A. (-2, 0), (-5, 0), (0, 10) B. (2, 0), (-5, 0), (0, 10) C. (2, 0), (5, 0), (0, 10) D. (-2, 0), (5, 0), (0, 10)

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Solve the system of equations by using substitution. 

A. x = 3, y = 9 B. x = 2, y = 8 C. x = 2, y = 9 D. x = 3, y = 8

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Find the given power. Write answer in rectangular form.4

A.   +  i
B.  +  i
C.  +  i 
D. 81i

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Simplify the complex fraction.

A.
B.
C.
D.

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Mathematics