Find zw or 
as specified. Leave your answer in polar form.z = 1 + iw = 1 - 
iFind 
.
A. 
(cos 15° + i sin 15°)
B. 
(cos 105° + i sin 105°)
C. 
(cos 105° + i sin 105°)
D. 
(cos 15° + i sin 15°)
Answer: C
Mathematics
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Solve the equation by applying the rules for rewriting equations.2x + 2 = 5x - 7
A. 3
B. 
C. 9
D. 
Mathematics
Find the standard form of the equation of the circle.Center at the origin and containing the point (5, 10).
A. x2 + y2 = 125
B. x2 + y2 = 15
C. x2 + y2 = 
D. x2 + y2 = 5
Mathematics
If y varies directly as x, write a general formula to describe the variation.y = 6 when x = 8
A. y = 
x
B. y = 
x
C. y = 2x
D. y = x - 2
Mathematics
Find the product.(9 - 5x)2
A. 81 + 25x2 B. 81x2 - 90x + 25 C. 81 - 90x - 25x2 D. 81 - 90x + 25x2
Mathematics