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
2 answers:
we are given
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
now, we can plug it and find y
we get
so,
the best approximate for the average gas mileage at a speed of 60 miles per hour is 30.7 mi/gal...........Answer
30.7 mi/gal is The best approximate
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Answer:
A. (2,-6)
Step-by-step explanation:
(×-2)²+(y+6)²=10
Equating it with
(×-h)²+(y -k)²=10
h = 2 & k = - 6
(h, k) = (2, - 6)
2/5 = 8/20
3/4= 15/20
Therefore, 3/4 is larger than 2/5~
Answer:
b.) (1, 12)
Step-by-step explanation:
used calculator
1-) isolate the radical symbol on one side of the equation
2-) square both sides of the equation to eliminate the radical symbol
Answer:
a1- 2 terms
a2- 6x, 9y
a3- 6,9
b1-2 terms
b2- 7x, 12x
b3- 7,12
c1- 3 terms
c2- 5x^2, 2y, 3
c3- 5,2,3
Step-by-step explanation: