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 150° + i sin 150°)
C. 
(cos 40° + i sin 40°)
D. 
(cos 150° + i sin 150°)
Answer: B
Mathematics
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Evaluate the double integral over the given region.
R: 0 ? x ? 
, 0 ? y ? ?
A. ?
B. 
C. 
D. 
Mathematics
Solve the problem by using three variables.The sum of the ages of Art, Ben, and Cal is 59. Art is 1 year older than Cal and Cal is 1 year younger than Ben. Who, if anyone, was a teenager 7 years ago?
A. Art, Ben, and Cal B. Art C. Art and Ben D. Ben
Mathematics
Graph the function.f(x) = 
x
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression.
What will be an ideal response?
Mathematics