Express the complex number in trigonometric form.9
- 9i Express your answer in degrees.
A. 18(cos 300° + i sin 300°)
B. 18(cos 330° + i sin 330°)
C. 
(cos 300° + i sin 300°)
D. 
(cos 330° + i sin 330°)
Answer: B
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What will be an ideal response?
Express the number in decimal notation.7 × 10-7
A. 0.0000007 B. -700,000 C. 0.00000007 D. 0.000007
Solve the problem.On the August 28 billing date, Marcus had a balance due of $826.16 on his credit card. The transactions during the following month were: 
The interest rate on the card is 1.5% per month. Using the previous balance method, find the new balance on September 28.
A. $1369.74 B. $1481.13 C. $1487.60 D. $727.16
Sketch the vector field in the plane along with its horizontal and vertical components at a representative assortment of points on the circle x2 + y2 = 4.F = 
i - 
j
What will be an ideal response?