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Citrus2011 [14]
3 years ago
9

How does the speed at which you drive affect your fuel economy? To find out, researchers drove a compact car for 200 miles at sp

eeds ranging from 35 to 75 miles per hour. From their data, they created the model Fuel Efficiency = 32 - 0.1 Speed and created this residual plot:

Mathematics
1 answer:
olchik [2.2K]3 years ago
3 0

Explanation:

The formula i.e.

Fuel Efficiency = 32-0.1*speed

represents that the efficiency on very lower speeds will be affected very minor as the multiple of 0.1 which will be subtracted from 32 will be small value.

Secondly, as per attached full question and graph plot, it is clear that up to 26.5 predicted (mpg), the trend of Residual (mpg) is increasing while after 26.5, it starts to decrease nearly linearly.

It's slop can be find out by two point formula i.e.

slope = m =(y2-y1)/(x2-x1)

=(1-2.5)/(27.5-27)

=(-1.5)/(0.5)

=-3

negative sign shows decreasing trend of second half plot

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Gabriel is at the grocery store, and wants to figure out his total cost before he gets to the register. He bought 2. 5 pounds of
katovenus [111]

The equation is 2.5x + 2y - 2 = 0.

<h2>Linear system</h2>

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

Given

He bought 2.5 pounds of apples that are x dollars a pound.

And 2 bags of lettuce for y dollars each.

The total cost is $2.

<h3>To find </h3>

The equation of this.

<h3>How to find the equation?</h3>

He bought 2.5 pounds of apples that are x dollars a pound.

Then the expression is 2.5x

And 2 bags of lettuce for y dollars each.

Then the expression is 2y

The total cost is $2.

Then the expression will be

    2.5x + 2y = 2

2.5x + 2y - 2 = 0

Thus the equation is 2.5x + 2y - 2 = 0.

More about the linear system link is given below.

brainly.com/question/20379472

8 0
2 years ago
Is this problem convergent or divergent?
Svetllana [295]

Answer:

Its divergent

Step-by-step explanation:

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6 0
2 years ago
Carly will be going to college in 3 years. she anticipates that she will need $12,000 to pay for the first year. she currently h
fgiga [73]
12000 - 2900 = 9100

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8 0
3 years ago
Read 2 more answers
Please help!
mrs_skeptik [129]

Answer:

2/3

Step-by-step explanation:

We can use the slope formula

m = (y2-y1)/(x2-x1)

 = (12-8)/(4 - -2)

  (12-8)/(4+2)

  4/6

   2/3

7 0
3 years ago
When the following expression is written in simplest form, what is the coefficient of the variable term?
Usimov [2.4K]

Answer:

-5

Step-by-step explanation:

-2.5y + 8y - 10.5

= 5.5y - 10.5y

= -5y

The coefficient of the variable y is -5.

6 0
3 years ago
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