Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(-6 + 2i)2
A. 32 - 24i
B. 40 + 24i
C. 32 + 24i
D. 40 - 24i
Answer: A
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Find the circumference and area of a circle having the given diameter or radius. Use 3.14 for ?. Round your results to the nearest tenth.d = 49 yd
A. C ? 153.9 yd, A ? 153.9 yd2 B. C ? 76.9 yd, A ? 307.7 yd2 C. C ? 76.9 yd, A ? 7539.1 yd2 D. C ? 153.9 yd, A ? 1884.8 yd2
Evaluate.73 - 6 ? 5 ? 2
A. 60 B. 86 C. 670 D. 13
Solve.Approximate to the nearest thousandth of a centimeter, if necessary, the length of the missing side of a right triangle with legs of 8 cm and 2 cm.
A. 16 cm B. 10.220 cm C. 8.246 cm D. 4.472 cm
Determine the slope and y-intercept of the line represented by the given equation.10x - 2y = 20
A. m = - 5; y-intercept is (0, 10)
B. m = 10; y-intercept is (0, 20)
C. m = 5; y-intercept is (0, -10)
D. m = 
; y-intercept is (0, 2)