gr 20 = ? mg

A. 60mg
B. 1.2mg
C. 1200mg
D. 600mg


Answer: C

Mathematics

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Perform the indicated operation and write your answer with positive integer exponents. 

A.
B.
C.
D.

Mathematics

Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(7 + 4i)(9 + 6i)

A. 87 - 6i B. 24i2 + 78i + 63 C. 39 + 78i D. 39 - 78i

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Find the center (h, k) and radius r of the circle with the given equation. x2 + y2 = 16

A. (h, k) = (0, 0); r = 16 B. (h, k) = (0, 0); r = 4 C. (h, k) = (4, 4); r = 16 D. (h, k) = (4, 4); r = 4

Mathematics

Solve the linear system by using an inverse matrix.

A. {(-6, -2)} B. {(-2, -6)} C. {(2, 6)} D. {(6, 2)}

Mathematics