Write interval notation for the following. Then graph the interval on a number line.{x? x < 2}
A. (-?, 2]
B. (-?, 2)
C. (2, ?)
D. [2, ?)
Answer: B
Mathematics
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Write out the first five terms of the sequence.an = 
xn
A. 
x, 
x2, 
x3, 
x4, 
x5
B. - 
x, - 
x2, - 
x3, - 
x4, - 
x5
C. 
x, - 
x2, 
x3, - 
x4, 
x5
D. 
x, - 
x2, - 
x3, - 
x4, - 
x5
Mathematics
Subtract. Simplify, if possible.
- 5
A. 5
B. 
C. 6
D. 5
Mathematics
Find the exact value of the expression.cos (30° + 45°)
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Suppose that the sample space is S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and that outcomes are equally likely. Compute the probability of the event E = {1, 2, 4, 5, 7, 9, 10}.
A. 
B. 7
C. 
D. 
Mathematics