Find the expected value for the random variable.A business bureau gets complaints as shown in the following table. Find the expected number of complaints per day.
A. 2.73
B. 3.01
C. 2.98
D. 2.85
Answer: A
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Provide an appropriate response.Tina was asked to solve the following problem: "The product of two consecutive numbers is 90. Find the numbers." Tina's solution is given below. Do you agree with her conclusion? If not, why not? x(x + 1) = 90x2 + x = 90x2 + x - 90 = 0(x + 10)(x - 9) = 0x = -10 or x = 9The pair of numbers is 9 and 10
What will be an ideal response?
Use the definite integral to find the area between the x-axis and the graph of f(x) over the indicated interval.f(x) = 
; [1, 3]
A. 
B. 3
C. 
D. 
Determine whether function is one-to-one.
A. Yes B. No
Provide an appropriate response.Show that the points P1(2, 4), P2(5, 2), and P3(7, 5) are the vertices of a right triangle.
What will be an ideal response?