Find the dot product v ? w.v = 13i - 13j,
w = -9i + 8j
A. -221
B. -104
C. -13
D. -117
Answer: A
Mathematics
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Find the indicated function value.Find f(5) when f(x) = 5.
A. 5 B. 10 C. 0 D. 2
Mathematics
Provide an appropriate response.Let f(x) = 
. Find the domain of f.
A. (-?, 8] B. (-?, -8] C. [8, ?) D. (-?, 8)
Mathematics
Graph the ellipse and label the center.
+ 
= 1
A. C(9, 11)
B. C(-9, 11)
C. C(-9, -11)
D. C(9, -11)
Mathematics
Evaluate the radical expressions or indicate that the root is not a real number.
A. 
B. 
C. 
D. 
Mathematics