Find the value of x and the value of y for which (x, 2) and (8, y) are points on the graph.2x - 3y = 7
A. x = 
, y = 3
B. x = 
, y = 3
C. x = 
, y = - 
D. x = 
, y = 3
Answer: D
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Solve the initial value problem.Differential Equation: 
= -3ti + 7tj + 9tkInitial Condition: r(0) = -3i + 3k
A. r(t) = 
i + 
t2j - 
k
B. r(t) = 
i + 
t2j + 
k
C. r(t) = (-3t2 - 6)i + 7t2j + (9t2 + 6)k
D. r(t) = 
i + 
t2j + 
k
Solve the problem.There are 3 cards in a hat; one is a king, one is a queen, and one is an ace. Two cards are to be selected at random with replacement. Using a tree diagram , obtain the sample space for the experiment. Then, find the probability that you choose the same card twice.
A. 
B. 
C. 
D. 
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = - 
, 
< ? < 2?Find sin 
.
A. - 
B. - 
C. 
D. 
Decide whether the given matrix could be a transition matrix.
A. Yes B. No