Solve the problem.For the triangle with vertices located at A(5, 3, 5), B(2, 2, 2), and C(1, 1, 1) , find a vector from vertex C to the midpoint of side AB.
A. 
i + 
j + 
k
B. 
i + 
j + 
k
C. 
i + 
j + 
k
D. 
i + 
j + 
k
Answer: C
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Write the expression in the standard form a + bi.
A. 
+ 
i
B. 
- 
i
C. 
- 
i
D. 
+ 
i
Find the probability.A lottery game has balls numbered 1 through 15. What is the probability that a randomly selected ball is an even numbered ball or a 10?
A. 
B. 
C. 
D. 7
Solve the problem. Be sure to make a diagram of the situation with all the given information labeled. ? A ship is anchored off a long straight shoreline that runs north and south. From two observation points 14 miles apart on shore, the bearings of the ship are N 32° E and S 50° E. What is the shortest distance from the ship to the shore? Round your answer to the nearest tenth of a mile. ?
A. 1.7 mi B. 7.7 mi C. 5.7 mi D. 3.1 mi E. 2.2 mi
Find ? if B = 4?.
?
?
Remember: The sum of the three angles in any triangle is always 180°.
?
A. ? = 72° B. ? = 19° C. ? = 21° D. ? = 18° E. ? = 69°