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AlladinOne [14]
3 years ago
6

The display gives the result of performing a quadratic regression on a data set where the inputs are speeds in miles per hour an

d the outputs are the corresponding braking distances in feet. What is the stopping distance for a vehicle traveling at 20 mph?

Mathematics
1 answer:
alina1380 [7]3 years ago
7 0
Y = a x² + b x + c
y = 0.0473809524 · 20² + 2.221428571 · 20 - 0.005952381 = 
= 18.95236 + 44.42875 - 0.05952381 = 63.374978 ≈ 63.4
Answer: C ) 63.4 ft.
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