Find the indicated vector.Let u = 
. Find -7u.
A. 
B. 
C. 
D. 
Answer: D
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Decide whether or not the events are mutually exclusive.Events A and B defined as followsA card is drawn at random from a deck of cards. Event A is that the card obtained is a face card and B is the event that the card obtained is a spade.
A. Yes B. No
Simplify the expression.
- 
+ 
A. 
B. 
C. 
D. 
Identify whether the given scatterplot shows a positive association, negative association, or no association.
A. negative association B. no association C. positive association
Translate the problem situation to a system of equations. Do not solve.The sum of two numbers is 9. Five times the smaller number minus twice the larger number is 17. What are the numbers?
A. x + y = 9; 5x - 2y = 17 B. x + y = 9; 2x - 5y = 17 C. x - y = 9; 5x + 2y = 17 D. x + y = 9; 5x + 2y = 17