Find 
. Write your answer in standard polar form with the argument in radians.z1 = 40(cos 40° + i sin 40°), z2 = 5(cos 8° + i sin 8°)
A. 35(cos 32° - i sin 32°)
B. 8(cos 48° + i sin 48°)
C. 8(cos 32° + i sin 32°)
D. 35
Answer: C
Mathematics
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Solve the problem.The cost of manufacturing a computer part is related to the quantity produced, x, during a production run. When 100 parts are produced, the cost is $300. When 600 parts are produced, the cost is $4800. Find an equation of the line relating quantity produced to cost. Write the final answer in the form C = mx + b.
A. C = 9x - 600 B. C = 9x C. C = 600x + 9 D. C = 9x + 600
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Solve the equation. Express radicals in simplest form.b2 + 
b = - 
A. ?
B. 
C. 
D. 
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Use an integer to express the number.A football team gained 27 yards on one play.
A. 27 B. -27
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True or false: The matrix 
is symmetric.
?
A. ?false B. ?true
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