Find the value of c for which the expression is a perfect-square trinomial. Then factor the perfect-square trinomial.x2 - x + c
A. 1; (x - 2)2
B. 
; (x - 1)2
C. 
; 
2
D. 
; 
2
Answer: C
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Solve the problem.Barnes and Able sell life, health, and auto insurance. Sales for May and June are given in the matrices. Life Health AutoM = 
J = 
Use matrix addition to determine the total sales for each type of insurance
for each salesperson.
A. Life Health Auto 
B. Life Health Auto
C. Life Health Auto
D. Life Health Auto 
At one high school, students can run the 100-yard dash in an average of 15.2 seconds with a standard deviation of .9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are indicated. Round to the nearest whole percent.Between 16.1 and 17 seconds
A. 34% B. 12% C. 27% D. 14%
Convert the given product to a single radical. Assume that all variables represent positive numbers.
? 
A. 
B. 
C. 
D. 
Answer the problem.Use the following function and a graphing calculator to answer the questions.f(x) = x4 - 4x2 + 3x + 2, [-0.5, 1.8]a). Plot the function over the interval to see its general behavior there. Sketch the graph below.
b). Find the interior points where f' = 0 (you may need to use the numerical equation solver to approximate a solution). You may wish to plot f' as well. List the points as ordered pairs (x, y).c). Find the interior points where f' does not exist. List the points as ordered pairs (x, y).d). Evaluate the function at the endpoints and list these points as ordered pairs (x, y).e). Find the function's absolute extreme values on
the interval and identify where they occur. What will be an ideal response?