Write the complex number in rectangular form.9(cos 80° + i sin 80°)
A. -0.5 - 3i
B. 8.9 + 1.6i
C. 0.5 + 3i
D. 1.6 + 8.9i
Answer: D
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Find the equation of the circle from the given information.Center at (1, -5), radius 
A. (x - 5)2 + (y + 1)2 = 169 B. (x + 1)2 + (y - 5)2 = 13 C. (x - 1)2 + (y + 5)2 = 13 D. (x + 5)2 + (y - 1)2 = 169
Provide an appropriate response.Suppose the time (in minutes) passengers must wait for an airplane is uniformly distributed with density function f(x) = 
where 0 ? x ? 60 and f(x) = 0 elsewhere. What is the probability that a commuter must wait more than 0 minutes?
Fill in the blank(s) with the appropriate word(s).
Round the whole number to its highest place value.2101
A. 2000 B. 3000 C. 2100 D. 1900
Factor, if possible.5x3 + 135
A. 5(x + 3)(x2 - 3x + 9) B. 5(x - 3)(x2 + 3x + 9) C. 5(x + 15)(x2 - 15x + 45) D. 5(x + 3)(x2 + 3x + 9)