Write the standard form of the equation of the circle with radius r and center (h, k).r = 
; (h, k) = (0, 9)
A. (x - 9)2 + y2 = 169
B. x2 + (y - 9)2 = 13
C. x2 + (y + 9)2 = 13
D. (x + 9)2 + y2 = 169
Answer: B
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Write the complex number in polar form. Express the argument ? in degrees, with 0 ? ? ? 360°.-5 - 5i
A. 10(cos 180° + i sin 180°) B. 5(cos 240° + i sin 240°) C. 10(cos 290° + i sin 290°) D. 10(cos 240° + i sin 240°)
Solve the problem.The earth, Jupiter, Saturn, and Neptune all revolve around the sun. The earth takes 1 year, Jupiter approximately 12 years, Saturn approximately 30 years, and Neptune approximately 165 years to make a complete revolution. How often will Jupiter and Neptune appear in the same direction in the night sky as seen from earth?[Hint: Find the LCM of 12 and 165]
A. Every 660 years B. Every 1320 years C. Every 330 years D. Every 1980 years
Evaluate.log 10x
A. 1 B. 10 C. log x D. x
Add.3223 + 2415
A. 5737 B. 5638 C. 5674 D. 5579