Write the complex number in the form a + bi.3(cos 60° + i sin 60°)
A. 
+ i
B. 
+ 
i
C. 
+ 
i
D. 
+ 
i
Answer: D
Mathematics
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Determine if the infinite geometric series converges or diverges. If the series converges, find its sum.4 - 1 + 
- . . .
A. diverges
B. converges, 
C. converges, 4
D. converges, - 1
Mathematics
Divide.56.871 ÷ 71
A. 8.01 B. 1.801 C. 18.01 D. 0.801
Mathematics
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.After t seconds the height s of an object propelled upward with an initial velocity of 3200 feet per second is given by 
How long after the object is propelled upward until it first reaches an altitude of 74,000 feet? (Round your answer to 2 decimal places.)
A. 53.37 seconds B. 26.69 seconds C. -20.93 seconds D. 0.36 seconds
Mathematics