Write the vector v in terms of i and j whose magnitude 
and direction angle ? are given.
= 7, ? = 225°
A. v = - 
i - 
j
B. v = - 
i - 
j
C. v = - 
i - 
j
D. v = 
i + 
j
Answer: C
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Find the domain and the range of the functions or relations from the graph.
A. domain: [-2, 2]; range: (-?, ?) B. domain: (-?, ?); range: (-?, ?) C. domain: (-?, ?); range: (-?, -2] ? [2, ?) D. domain: (-?, -2] ? [2, ?); range: (-?, ?)
Find the foci of the ellipse whose equation is given.9(x - 2)2 + 36(y + 3)2 = 324
A. foci at (2 + 3
, -3) and (2 - 3
, -3)
B. foci at (2 + 3
, 2) and (2 - 3
, 2)
C. foci at (-3 + 3
, 2) and (-3 - 3
, 2)
D. foci at (- 3
, -3) and (3
, -3)
Provide an appropriate response.If y = f(x) = ex2 + 3, find the (a) relative and (b) percentage rate of change of y when x = 0.5.
Fill in the blank(s) with the appropriate word(s).
Establish the identity.
= 
What will be an ideal response?