Subtract.
A. 6102
B. 3102
C. 3096
D. 2996
Answer: B
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Solve.A rectangular box with volume 517 cubic feet is built with a square base and top. The cost is $1.50 per square foot for the top and the bottom and $2.00 per square foot for the sides. Let x represent the length of a side of the base in feet. Express the cost of the box as a function of x and then graph this function. From the graph find the value of x, to the nearest hundredth of a foot, which will minimize the cost of the box.
A. 8.79 feet B. 8.83 feet C. 8.91 feet D. 8.49 feet
Determine whether the ordered pair is a solution of the given linear equation.y = -x; (-15, -15)
A. yes B. no
Find the domain of f. Write your answer in interval notation.f(x) = 
A. 
B. 
C. 
D. 
Solve the problem.Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0. The following data were obtained regarding their GPAs on entering the program versus their current GPAs. By using linear regression, the following function is obtained: 
where x is entering GPA and y is current GPA. Use this function to predict current GPA of a student whose entering GPA is 3.2. Entering GPA Current GPA 3.53.63.83.73.63.93.63.63.53.93.93.84.03.73.93.93.53.83.74.0
A. 3.57 B. 3.39 C. 3.77 D. 3.28