Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 
B. -4
C. 2
D. - 
Answer: A
You might also like to view...
Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 
B. 
C. 
D. 
Solve the problem.A whispering gallery is a room in the shape of an elliptic reflector. If a source of sound is placed at one focal point of an elliptic reflector, the sound is reflected through the other focal point. If one person speaks at one focal point, then another person at the other can hear sounds as faint as a whisper. If the whispering gallery is based on the ellipse 
+ 
= 1, how many units from the center of the ellipse would the two people stand?
A. 16 units B. 3 units C. 4 units D. 5 units
Determine algebraically whether the graph is symmetric with respect to the x-axis, the y-axis, and the origin.y = |5x|
A. Origin only B. x-axis only C. y-axis only D. x-axis, y-axis, origin
The table shows the numbers 
(in thousands) of residents from 2002 through 2007.
YearNumber of residents, 
2002 646 2003 657 2004 668 2005 679 2006 690 2007 701Determine whether a linear model can be used to approximate the data.If so, find a model algebraically. Let n represent the year, with 
corresponding to 2002.
A. A linear model can be used.
B. A linear model can be used.
C. A linear model can be used.
D. A linear model can be used.
E. A linear model can be used.
