Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(5 + 2i)(5 - 2i)
A. 25 - 4i
B. 21
C. 25 + 4i
D. 29
Answer: D
Mathematics
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Perform the indicated operation. Express the solution in scientific notation.
A. 8.6 × 10-10 B. 8.6 × 104 C. 4.3 × 104 D. 4.3 × 10-10
Mathematics
Write as a decimal number rounded as indicated.
; Round to the nearest hundredth.
A. 0.67 B. 0.66 C. 1.50 D. 0.667
Mathematics
Find the quotient.
A. -8 B. 9 C. -9 D. -10
Mathematics
Write using radical notation. Then, simplify, if possible.12251/2
A. 17.5 B. 35 C. 70 D. 140
Mathematics