Solve the problem.The matrices give points and rebounds for five starting players in two games. Find the matrix that gives the totals. Points Rebounds F = 
Points Rebounds S = 
A. 
B. 
C. 
D. 
Answer: B
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Divide and simplify.
A. 
- 
x2 + 
x
B. 
- 3x2 + 4x
C. 
- 
x3 + 
x2
D. 
+ 
x2 - 
x
You sell books, and the price you charge a single customer for each book depends on the number purchased. If a customer orders B books then you charge 
dollars for each book. You have to pay the wholesaler $162 for each book you sell.
? A: Write a formula that gives your income I, in dollars, if you sell B books. (For income, you do not consider the price you pay for each book.)B. Write a formula that gives your net profit P, in dollars, if you sell B books. (For net profit you must consider both income and cost.)C: What number of books sold will provide you with the most profit? What will be an ideal response?
Solve.There are currently 76 million cars in a certain country, decreasing by 3.1% annually. How many years will it take for this country to have 59 million cars? (Round to the nearest year.)
A. 17 yr B. 5 yr C. 8 yr D. 91 yr
Evaluate the discriminant, and predict the type and number of solutions.4x2 - 144 = 0
A. 0, one rational B. 2304, two different rational C. 2304, two different irrational D. -2304, two different imaginary