Use the Pythagorean Theorem to find the exact length of the missing side. Then approximate the length to the nearest thousandth.
A. 
? 2.236
B. 
= 27.501
C. 
? 8.544
D. 
? 7.416
Answer: D
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Find the slope of the polar curve at the indicated point.r = 5 cos 3?, ? = 
A. - 
B. -
C. 
D. 
Find two different spanning trees for the graph.
What will be an ideal response?
Find the direction the parabola opens, the coordinates of the vertex, the equation of the axis of symmetry and draw the graph.y = (x + 2)2 + 3
A. 
opens up; vertex (3, -2);
axis of symmetry x = 3
B. 
opens up; vertex (-2, 3);
axis of symmetry x = -2
C. 
opens up; vertex (-3, 2);
axis of symmetry x = -3
D. 
opens up; vertex (2, 3);
axis of symmetry x = 2
Solve.Jeff starts driving at 55 miles per hour from the same point that Lauren starts driving at 50 miles per hour. They drive in opposite directions, and Lauren has a half-hour head start. How long will they be able to talk on their cell phones that have a 320-mile range?
A. 3
hr
B. 2
hr
C. 3
hr
D. 3
hr