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s2008m [1.1K]
3 years ago
9

What equation is a linear function?

Mathematics
1 answer:
GREYUIT [131]3 years ago
8 0

c

y=1-4/3x

y=(3-4x)/3

3y=3-4x

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I NEED HELP!!!
andrey2020 [161]

Answer:

<h2>B. The amount of fuel used was lowest at speeds around 60km/h.</h2>

Step-by-step explanation:

The decreasing part is from (20,13) to (60,6), which gives an average rate of

r=\frac{6-13}{60-20}=-\frac{7}{40}=-0.175

Then, we have an increasing part from (60,6) to (120,10), which gives an average rate of

r=\frac{10-6}{120-60}=\frac{4}{60}=0.067

Basically, at 60 km/h the fuel used was 6 liters per 100 kilometers. Notice that the other velocities make the car to use more liters per kilometers.

Therefore, the amount of fuel used was lowest at speeds around 60 km/h.

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3 years ago
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m_a_m_a [10]

49-c\leq45\qquad\text{subtract 49 from both sides}\\\\-c\leq-4\qquad\text{change the signs}\\\\\boxed{c\geq4}

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3 years ago
What additional piece of information must be known in order to calculate the volume of the cylinder below?
djyliett [7]

For this case we have that by definition, the volume of a cylinder is given by:

V = \pi * r ^ 2 * h

Where:

r: It is the radius of the cylinder

h: It is the height of the cylinder

We have as data, observing the figure, that they give us the radio. Then, the height is missing.

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EleoNora [17]
1.75, 2.75, 4

hope this helps!
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A bookseller bought 80 books at rs 30 each 20 books were stolen and he sold the remaining books at 5% loss find the selling pric
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Answer:

rs 38.

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Total cost of the 80 books = 80*30 = rs 2400.

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