Find the indicated roots. Write the answer in trigonometric form.Fifth roots of 32(cos 320° + i sin 320°)
A. 2(cos 64° + i sin 64°), 2(cos 136° + i sin 136°), 2(cos 208° + i sin 208°), 2(cos 280° + i sin 280°), 
B. 2(cos 320° + i sin 320°), 2(cos 410° + i sin 410°), 2(cos 500° + i sin 500°), 2(cos 590° + i sin 590°), 
C. 2(cos 64° + i sin 64°), 2(cos 154° + i sin 154°), 2(cos 244° + i sin 244°), 2(cos 334° + i sin 334°), 
D. 2(cos 320° + i sin 320°), 2(cos 392° + i sin 392°), 2(cos 464° + i sin 464°), 2(cos 536° + i sin 536°), 
Answer: A
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Solve the following systems of linear equations using Gaussian elimination.
x + 2y + 2x = -1 x + 3y + 2z = 3 x + 3y + z = 4
Solve the problem.An airplane flies from Metro City to Gotham with a tailwind that increases its normal speed by 
On the return trip, the plane must fly against this wind, which decreases its normal speed by the same amount. The flight from Metro City takes 2.70 hours and the return trip takes 
How far is it from Metro City to Gotham?
A. 1120 mi B. 1000 mi C. 1200 mi D. 1300 mi
Perform the indicated operation or operations.
+ 
A. 
B. 
C. 
D. 
Simplify the expression. Assume that all variables are positive when they appear.
A. 
B. 
C. 
D. 