Perform the indicated operation. Simplify the answer when possible.
+ 
A. 2
B. 8
C. 4
D. 2
Answer: A
You might also like to view...
Solve the problem using the strategy of your choice.Can you place the digits 1 through 9 into a 3 x 3 square so that each row, column, and diagonal add up to the same total? Four digits have been inserted.
A. 
B. 
C. 
D. 
Solve the inequality numerically. Approximate endpoints to the nearest tenth.2.3
+ 1.7x ? 9
A. x ? 2.9 B. x ? -3.1 C. x ? 3.1 D. x ? -2.9
Solve the problem.Economists use what is called a Leffer curve to predict the government revenue for tax rates from 0% to 100%. Economists agree that the end points of the curve generate 0 revenue, but disagree on the tax rate that produces the maximum revenue. Suppose an economist produces this rational function,
where R is revenue in millions at a tax rate of x percent. Use a graphing calculator to graph the function. What tax rate produces the maximum revenue? What is the maximum revenue?
A. 29.7%; $467 million B. 31.4%; $464 million C. 28.1%; $470 million D. 26.5%; $469 million
Find an equation for the indicated ellipse.Vertices: (3, -3) and (-5, -3); endpoints of minor axis: (-1, -1) and (-1, -5)
A. 
+ 
= 0
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1