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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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sveticcg [70]
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4 0
3 years ago
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Amanda is a cabinetmaker. She makes cabinets using one of three types of wood: birch, maple, or cherry. She can finish each type
padilas [110]
Assume that each material in each category has an equal chance of being selected.

Categories:
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Each event (selecting material for the cabinet, for the finish, and for the knob) is an independent event.

Therefore
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6 0
4 years ago
Solve and show your work for each question.
Harlamova29_29 [7]

Answer:

9/20

Step-by-step explanation:

You set the fraction up at first as 45/100. Then you know that 5 goes into each so you divide by 5 \frac{45}{100} /5

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100/5=20

You get 9/20, and this is in simplest form.

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3 years ago
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Answer:

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2 + 9 + 11 + 10 + 3 + 5 + 4 + 12 = 56/8 = 7

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3 years ago
The total surface area if a cylindrical can, whose height is equal to the radius of the base is 2464 cm^2, find its volume.​
KIM [24]

Step-by-step explanation:

TSA of cylinder = 2πr (h + r)

according to the question

height = radius

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