Find the rectangular form for the indicated power of the complex number.z4; z = 
A. - 
+ 
i
B. - 
- 
i
C. - 
- 
i
D. - 
+ 
i
Answer: B
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Factor.x2 - x - 12
A. (x + 3)(x - 4) B. (x + 4)(x - 3) C. prime D. (x + 1)(x - 12)
Find the exact value of the expression.cos
A. - 
B. 
C. 
D. 
Solve the problem.In a game, each red token represents -1 point and each blue token represents +1 point. How many more points does a player with 10 blue tokens have than a player with 14 red tokens?
A. 4 B. 24 C. -24 D. -4
Solve the problem.The profit function for a product is given by 
dollars, where x is the number of units produced and sold. If break-even occurs when 60 units are produced and sold, use synthetic division to find a quadratic factor of P(x) and then find a number of units other than 60 that gives break-even for the product.
A. 200 units B. 10 units C. 250 units D. 100 units