Simplify the rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression.

A. , x ? - 
B. , x ? -8, -4
C. - , x ? -8, -4
D. , x ? - 

Answer: B

Mathematics

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A.
B. - 
C.
D. - 

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Find the maximum or minimum point of the function and state whether it is a maximum or minimum.f(x) = 10x2 + 80x + 157

A. (-4, -3); minimum B. (-4, 0); minimum C. (-3, -4); maximum D. (-3, 0); maximum

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Multiply and simplify.-6z ? 

A. 0 B. 36z C. 1 D. -1

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Solve the equation for the indicated variable.I = for n

A. n = 
B. n = 
C. n = 
D. n = IR(Ir - E)

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Mathematics