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Brrunno [24]
3 years ago
10

The equation y=−0.0088x2+0.79x+15 models the speed x (in miles per hour) and average gas mileage y (in miles per gallon) for a v

ehicle. What is the best approximate for the average gas mileage at a speed of 60 miles per hour?
15.7 mi/gal

30.7 mi/gal

61.9 mi/gal

62.9 mi/gal
Mathematics
2 answers:
Neko [114]3 years ago
6 0

we are given

y=-0.0088x^2+0.79x+15

where

y is average gas mileage in miles per gallon

x is speed in miles per hour

we have to find average gas mileage at a speed of 60 miles per hour

so, we have

x=60mph

now, we can plug it and find y

y=-0.0088(60)^2+0.79(60)+15

we get

y=30.72

so,

the best approximate for the average gas mileage at a speed of 60 miles per hour is 30.7 mi/gal...........Answer

solniwko [45]3 years ago
3 0
30.7 mi/gal is The best approximate
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