Use a graphing calculator to graph the parabola.2.3(y - 0.4)2 = 0.1(x + 3.9)

A. y = 0.4 ± 

B. y = 0.4 ± 

C. y = -0.4 ± 

D. y = -0.4 ± 


Answer: B

Mathematics

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Find the product, AB, if possible.A = , B = 

A. AB is not defined.
B.
C.
D.

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Find the domain of f(x).f(x) = 

A. {x? x is a real number and x ? 7} B. {x? x is a real number and x ? -4} C. {x? x is a real number and x ? 4} D. {x? x is a real number and x ? -7}

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Use the square root property to solve the equation.3x2 + 21 = 0

A. {-i, i}
B. {-7i, 7i}
C. {-7, 7}
D. {-}

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Find the indicated matrix.Let A = . Find 4A.

A.

B.

C.

D.

Mathematics