Find the product of the complex number and its conjugate.4 + 3i

A. 7
B. 16 + 9i
C. 16 - 9i
D. 25

Answer: D

Mathematics

Add.

A. 49 B. 76 C. 67 D. 85

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Mathematics

Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated axis.About the y-axis

A. 12? B. 4? C. 16? D. 8?

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Mathematics

Solve the system by elimination. 6x + 45 = 9y-2x - 3y = -27

A. {(2, 8)} B. ? C. {(3, 7)} D. {(3, 8)}

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Mathematics

Find the center (h, k) and radius r of the circle with the given equation. 4x2 + 4y2 - 12x + 16y - 5 = 0

A. (h, k) = (, -2); r =
B. (h, k) = (- , 2); r=
C. (h, k) = (- , 2); r =
D. (h, k) = (, -2); r =

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Mathematics