Write the complex number in rectangular form.4(cos 300° + i sin 300°)
A. 2
- 2i
B. -2 + 2
i
C. 2 - 2
i
D. -2
- 2i
Answer: C
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Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.logn
A. 
logn6 + 
lognx - 
lognz
B. 
logn6 + 5 lognx - 9 lognz
C. 
logn6 + 
lognx + 
lognz
D. 
logn6 - 
lognx - 
lognz
Rationalize the denominator. Assume all variables have positive values.
A. 1
B. 
C. 2
D. 2
Write the following phrase as an algebraic expression and simplify if possible. Let x represent the unknown number.The sum of four times a number, 5, six times a number, and 2
A. 4x + 13 B. 10x + 32 C. 10x + 7 D. 10x - 3
Find the probability.A lottery game has balls numbered 0 through 13. If a ball is selected at random, what is the probability of selecting an even numbered ball or a 3?
A. 
B. 
C. 2
D. 7