Write the complex number in polar form. Express the argument in degrees, rounded to the nearest tenth, if necessary.-2i
A. 2(cos 90° + i sin 90°)
B. 2(cos 0° + i sin 0°)
C. 2(cos 270° + i sin 270°)
D. 2(cos 180° + i sin 180°)
Answer: C
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Multiply, and then simplify if possible. Assume all variables represent positive real numbers.(
- 3
)(
- 3
)
A. 5x - 3
- 3
+ 9
B. 25x2 - 3
- 3
+ 9
C. 5x - 3
- 3
+ 9
D. 5x - 3
+ 9
Use the discriminant to determine whether the equation has two rational solutions, one rational solution, two irrational solutions, or two nonreal complex solutions. Do not actually solve.4y2 = 3y - 6
A. Two rational solutions B. Two irrational solutions C. One rational solution D. Two nonreal complex solutions
Find the unknown side for the following figure.
A = 192 cm2
A. h = 8 cm B. h = 32 cm C. h = 16 cm D. h = 24 cm
Perform the division.(6x3y3 + 6x5y7 - 9x6y4) ÷ (3x3y3)
A. 2 + 2xy4 - 3x2y B. 2 + 2x2y3 - 3x3y2 C. 2 + 2x2y4 - 3x3y D. 2xy + 2x2y4 - 3x3y