Find the product.(13y + x)(13y - x)
A. 169y2 + 26xy - x2
B. 169y2 - x2
C. 26y2 - x2
D. 169y2 - 26xy - x2
Answer: B
Mathematics
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Find the slope of the polar curve at the indicated point.r = -4 - 5 cos ?, ? = 
A. 
B. 
C. - 
D. - 
Mathematics
Provide an appropriate response.Solve:
? 0
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the solution set of the system.
?
?
A. ?
B. ?
C. ?
D. ?
Mathematics
Graph the given function. Identify the vertex and the intercepts.y = - x2 - 6x - 9
A. Vertex: (3, 0)
x-intercept: 3
y-intercept: -9
B. Vertex: (3, 0)
x-intercept: 3
y-intercept: 9
C. Vertex: (-3, 0)
x-intercept: -3
y-intercept: 9
D. Vertex: (-3, 0)
x-intercept: -3
y-intercept: -9
Mathematics