Divide.1 ÷ (6 + 8i)
A. 
- 
i
B. - 
+ 
i
C. - 
- 
i
D. 
+ 
i
Answer: A
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Write the given Chinese numeral as a Hindu-Arabic numeral.
A. 840 B. 540 C. 940 D. 640
Solve the problem.A window is in the form of a rectangle surmounted by a semicircle. The rectangle is of clear glass, whereas the semicircle is of tinted glass that transmits only one-third as much light per unit area as clear glass does. The total perimeter is fixed. Find the proportions of the window that will admit the most light. Neglect the thickness of the frame.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Find the center (h, k) and radius r of the circle. Graph the circle.x2 + 8x + y2 + 8y + 26 = 0
A. (h, k) = (-4, -4); r = 
B. (h, k) = (-4, -4); r = 6
C. (h, k) = (4, 4); r = 
D. (h, k) = (4, 4); r = 6
Solve and check. Begin by using the addition or multiplication principles of equality to isolate the squared term. x2 - 100 = 0
A. 52.5 B. ±9 C. 10 D. ±10