Multiply.(x + 1)(x - 1)
A. x2 + 2x - 1
B. x2 - 2
C. x2 - 2x - 1
D. x2 - 1
Answer: D
You might also like to view...
The following table shows the running speed R, in centimeters per second, of ants as a function of the temperature T in degrees Celsius. Explain in practical terms the meaning of the slope of the regression equation. T 25.6 30.3 32.3 34.8 R 2.16 3.18 4.89 4.77? ?
A. An increase of 1 degree in temperature results in an increase of 0.32 centimeters per second in running speed. B. An increase of 1 degree in temperature results in an increase of 0.44 centimeters per second in running speed. C. An increase of 1 degree in temperature makes the running speed 0.32 times faster. D. An increase of 1 degree in temperature makes the running speed 0.44 times faster.
Solve the problem.Find the image of triangle ABC for the size transformation with center O and scale factor 3/4.
A. 
B. 
C. 
D. 
Solve the problem.A retailer knows that n games can be sold in a month at a price of 
dollars per game. Assume that he buys each game for 
and sells everyone that he buys. If he wishes to make a profit of at least 
per month on sales of this game, how many games must he sell each month?
A. 0 ? n ? 30 B. 30 ? n ? 80 C. 25 ? n ? 40 D. 30 ? n ? 50
Perform the operation and simplify, or solve the equation for the variable.
? 
A. 
B. 
C. 
D. 