Solve the problem.The kings are separated from a deck of standard playing cards and shuffled. One is randomly selected. What are the odds of drawing a black card?
A. 1 : 2
B. 1 : 4
C. 1 : 1
D. 4 : 1
Answer: C
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In a series RC circuit, impedance may be calculated by what equation?
a. ER/Z b. R ÄÄÄÄÄ cos é c. Ec ÄÄ Z
Write the quotient in the form a + bi.
A. 1 + 2i
B. 1 - 2i
C. 
- 
i
D. 
+ 
i
Simplify. Assume that no radicands were formed by raising negative quantities to even powers.
A. 
B. 2
C. 2
D. 4
Solve the problem.A woman works out by running and swimming. When she runs, she burns 8 calories per minute. When she swims, she burns 10 calories per minute. She wants to burn at least 400 calories in her workout. Graph an inequality that describes the situation. Let x represent the number of minutes running and y the number of minutes swimming. Because x and y must be positive, limit the graph to quadrant I only.
A. 
B. 
C. 
D. 