Find zw or 
as specified. Leave your answer in polar form.z = 5(cos 200° + i sin 200°)w = 4(cos 50° + i sin 50°)Find 
.
A. 
(cos 40° + i sin 40°)
B. 
(cos 40° + i sin 40°)
C. 
(cos 150° + i sin 150°)
D. 
(cos 150° + i sin 150°)
Answer: D
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Find an equation of the tangent to the curve at the point corresponding to the given value of the parameter.
 FIGURE 1.png)
Solve the problem.Find the values of v0 in the equation e = 
- 1 that make the orbit described by r = 
parabolic.
A. v0 = 
B. v0 = 
C. v0 = 2GM
D. v0 = 
A right circular cylinder with a wall that is 1 cm thick is dipped into paint. How many square centimeters of paint are needed to cover the cylinder (inside and out)? The radius of the inner wall, r, of the cylinder is 4 cm, the radius of the outer wall, R, of the cylinder is 5 cm and the height of the cylinder is 10 cm. Give the exact answer.
Subtract.-21 - 57
A. 78 B. -36 C. 36 D. -78