A secretary periodically checks to see how many of the three lines into the office are busy. Her findings for one week were the following:
No. lines busy
Frequency
0
20
1
65
2
25
3
10
Let the random variable X be the number of lines busy. Find the probability distribution of X.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the product.(x2 - 3x + 1)(5x)
A. 5x3 + 16x2 + 5x B. 5x3- 15x2 + 5x C. 5x3 - 14x2 + 2x D. 5x3 - 15x2 - 8x
Mathematics
Provide an appropriate response.Solve: (x + 5)2 = 16
Fill in the blank(s) with the appropriate word(s).
Mathematics
Use the slope-intercept form to graph the equation.y = 
x + 2
A. 
B. 
C. 
D. 
Mathematics
Multiply the pair of monomials.
A. - 
x11
B. - 
x24
C. - 
x24
D. 
x11
Mathematics