Express in terms of sums and differences of logarithms.ln
A. 3 ln x + ln y
B. ln 
C. 3
+ 
D. 
ln x + 
ln y
Answer: D
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Find the indicated root of the given equation by using Newton's method.2x4 - 3x2 - 7x + 1 = 0 (the larger positive root)
A. 1.8111097 B. 1.8111020 C. 1.8111239 D. 1.8111272
Match the system of inequalities with the appropriate graph.x + 2y ? 2 x + y ? 0
A. 
B. 
C. 
D. 
Find the nth term of the geometric sequence.a = -2; r = -4
A. an = -2 ? -4n B. an = -2 ? 4n-1 C. an = -4 ? -2n-1 D. an = -2 ? -4n-1
The ? shape in the figure below is shown using 9 pixels in a 3 × 3 grid. The color levels are given to the right of the figure. Use the matrix 
that represents a digital photograph of the ? shape to solve the problem.
Adjust the contrast by changing the black to white and the light grey to dark grey. Use matrix addition to accomplish this.
A. 
+ 
= 
B. 
+ 
= 
C. 
+ 
= 
D. 
+ 
= 