Write the complex number in standard form.
?

?

A.
B. ?
C. ?
D. ?
E. ?

Answer: B

Mathematics

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Find an equation of the ellipse that satisfies the given conditions.

Foci: (0, ± 1), vertices (0, ± 6)

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Solve the equation.3(x + 3) = (3x + 9)

A. {all real numbers} B. {?} C. {18] D. {0}

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Rationalize the denominator.

A. -13 - 2
B. 13 - 2
C. 13 + 2
D. 2 - 13

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Solve.A vendor has learned that, by pricing pretzels at $1.50, sales will reach 102 pretzels per day. Raising the price to will cause the sales to fall to 76 pretzels per day. Let y be the number of pretzels the vendor sells at x dollars each. Write a linear equation that models the number of pretzels sold per day when the price is x dollars each.

A. y = -52x - 180
B. y = 52x + 24
C. y = - x + 
D. y = -52x + 180

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Mathematics