Write the complex number in trigonometric form r(cos ? + i sin ?), with ? in the interval [0°, 360°).9
+ 9i
A. 18(cos 30° + i sin 30°)
B. 18(cos 60° + i sin 60°)
C. 18(cos 330° + i sin 330°)
D. 18(cos 300° + i sin 300°)
Answer: A
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Find the absolute extreme values of the function on the interval.f(x) = csc x, - 
? x ? 
A. absolute maximum does not exist; absolute minimum does not exist B. absolute maximum is 1 at x = ?; absolute minimum is -1 at x = ? C. absolute maximum is 0 at x = -?; absolute minimum is -1 at x = ? D. absolute maximum is -1 at x = ?; absolute minimum is 1 at x = 0
Find the sum of the given infinite geometric series.35 - 5 + 
- . . .
A. 
B. 
C. 
D. 
First, find the initial proceeds of the simple discount note. Then, find the discount period, the discount, and proceeds after discounting.Date Loan Was Made: Jan. 19Maturity Value: $20,000Length of Loan: 60 daysRate: 10%Date of Discount: Mar. 7Discount %: 10%
A. Initial Proceeds: $59,666.67; Discount Period: 15 days; Discount: $411.11; Proceeds After Discount: $59,927.78 B. Initial Proceeds: $19,666.67; Discount Period: 13 days; Discount: $355.56; Proceeds After Discount: $39,927.78 C. Initial Proceeds: $19,666.67; Discount Period: 13 days; Discount: $72.22; Proceeds After Discount: $19,927.78 D. Initial Proceeds: $39,666.67; Discount Period: 15 days; Discount: $344.44; Proceeds After Discount $39,927.78
Simplify.23 × 152 + (6 - 6) × 6
A. 1872 B. 1800 C. 27,000 D. 180