Solve the problem.For a motorcycle traveling at speed v (in mph) when the brakes are applied, the distance d (in feet) required to stop the motorcycle may be approximated by the formula 
Find the instantaneous rate of change of distance with respect to velocity when the speed is 47 mph.
A. 11.4 mph
B. 5.7 mph
C. 4.7 mph
D. 48 mph
Answer: B
Mathematics
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Write the phrase as a variable expression. Use x to represent "a number."The total of 138 and a number
A. 138 - x B. 138 C. 138x D. 138 + x
Mathematics
Find the focus and directrix of the parabola.x2 = -8y
A. (0, -2); y = -2 B. (-2, 0); y = 2 C. (0, -2); y = 2 D. (0, -2); x = 2
Mathematics
Illustrate Goldback's conjecture for the following number.32
A. 13 + 19 B. 25 C. 16 + 16 D. 7 + 25
Mathematics
Find the remaining sides of a 30-60-90 triangle from the given information.The length of the shortest side is 8.
A. 4; 8
B. 4; 16
C. 16; 8
D. 16; 16
Mathematics