Solve.Ted walks around a lake on a path that is 4
miles long. It takes him 1
hours to complete his walk. What is his average speed (in miles per hour)?
A. 2
miles per hour
B. 2
miles per hour
C. 2
miles per hour
D. 3
miles per hour
Answer: A
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Give a rule for the piecewise-defined function. Then give the domain and range.
A. f(x) = 
; Domain: (-?, ?), Range: {-3, 3}
B. f(x) = 
; Domain: {-3, 3}, Range: (-?, ?)
C. f(x) = 
; Domain: (-?, ?), Range: {-3, 3}
D. f(x) = 
; Domain: {-3, 3}, Range: (-?, ?)
Sketch the graph of the equation. Identify the vertex and the intercepts.y = x2 + 6x
A. Opens: Up;
Vertex: (- 3, - 9);
x-intercepts: (0, 0) and (-6, 0);
y-intercept: (0, 0)
B. Opens: Up;
Vertex: (3, - 9);
x-intercepts: (0, 0) and (6, 0);
y-intercept: none
C. Opens: Up;
Vertex: (3, - 9);
x-intercepts: (0, 0) and (6, 0);
y-intercept: (0, 0)
D. Opens: Up;
Vertex: (- 3, - 9);
x-intercepts: (0, 0) and (-6, 0);
y-intercept: none
Find a vector that is perpendicular to the plane passing through the three given points. PQR (3, 4,5), (1,0,3), (4,7,6)
What will be an ideal response?
Identify and graph the polar equation.r = 4 - 3 sin ? 
A. 
limacon with inner loop
B. 
limacon without inner loop
C. 
limacon with inner loop
D. 
limacon without inner loop