Solve the equation by the method of your choice. Simplify irrational solutions, if possible.
- 
r + 
= 0
A. {-2, 2}
B. 0
C. {-2}
D. {2}
Answer: D
Mathematics
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Write the complex number in polar form. Express the argument in degrees.-3
A. 3(cos 90° + i sin 90°) B. 3(cos 180° + i sin 180°) C. 3(cos 0° + i sin 0°) D. 3(cos 270° + i sin 270°)
Mathematics
Solve the problem.A pair of ropes needs adjustment. One rope is 80 inches and the other is 50
inches. Find how much the longer rope should be shortened to make both ropes the same length.
A. 30
in.
B. 14
in.
C. 130
in.
D. 29
in.
Mathematics
Convert the angle to D° M' S'' form. Round the answer to the nearest second.351.26°
A. 351°16'35'' B. 351°35'26'' C. 351°15'36'' D. 351°15'26''
Mathematics
Build the fraction to an equivalent fraction with the specified denominator. State the numerator.
= 
A. 9 B. 3 C. 45 D. 135
Mathematics