Perform the indicated operation. Simplify, if possible.
+ 
A. 
B. 
C. 
D. 
Answer: C
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If you are driving at a speed of S miles per hour and make an emergency stop, you can expect to leave skid marks of length L feet. The relationship is
?
?
Suppose your speed is 82.00 miles per hour. Use functional notation to express the length of skid marks an emergency stop will produce, and then calculate that value.
?
A. 
feet
B. 
feet
C. 
feet
D. 
feet
Use the substitution formula to evaluate the integral.
A. 
B. 
C. 
D. 
Graph the parabola and label the vertex. Find the x-intercept.x = 
y2 + 3
A. vertex (3, 0), x-intercept (3, 0)
B. vertex (- 3, 0), x-intercept (- 3, 0)
C. vertex (3, 0), x-intercept (3, 0)
D. vertex (- 3, 0), x-intercept (- 3, 0)
Solve the problem.A comet has a nearly circular orbit around a star with a radius of 330 million miles and requires 8.24 earth years to complete one orbit. Estimate the orbital speed of the comet in miles per hour. Round to the nearest mile per hour.
A. 689,404 mph B. 252 mph C. 28,725 mph D. 251,632,423 mph