Simplify by rationalizing the denominator.
A. 
- 
B. 
C. 
+ 
D. 
- 
Answer: D
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Write the phrase in exponential notation.Six squared
A. 62 B. 63 C. 12 D. 26
Classify as true or false.GCD(a, a) = a
A. True B. False
For the following rational function, identify the coordinates of all removable discontinuities and sketch the graph. Identify all intercepts and find the equations of all asymptotes.f(x) = 
A. removable discontinuity at (2, -4);
x-intercept: 
, y-intercept: (0, 2);
no asymptotes
B. removable discontinuity at (2, 4);
x-intercept: (-2, 0), y-intercept: (0, 2);
no asymptotes
C. removable discontinuity at (2, 0);
x-intercept: (2, 0), y-intercept: (0, 2);
no asymptotes
D. removable discontinuity at (2, 8);
x-intercept: 
, y-intercept: (0, 2);
no asymptotes
A geometric sequence is given. Find the common ratio and write out the first four terms.
A. an = 6 
n-1
r = 
; 6, 
, 
, 
, ...
B. an = 6 ? (2)n-1
r = 2; 6, 12, 24, 48, ...
C. an = 
(6)n-1
r = 
; 6, 12, 24, 48, ...
D. an = 6 
n-1
r = 
; 6, 3, 
, 
, ...