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3 years ago

PLEASE HELP FAST!!!! River raft rental are $7 per hour plus a deposit fee of $25 per person. Wright a expression for the total c

ost of renting a raft for H number of hours.

Mathematics

1 answer:

Anna007 [38]3 years ago

6 0

$y = 7x + 25x$

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What conditional statement is represented by the Venn diagram below

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11) a or d 12) b

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3 years ago

Tung rotates a square around its horizontal axis of symmetry to make a solid figure. What is the shape of the vertical cross sec

Iteru [2.4K]

The shape of the vertical cross section of the solid figure is Circle , Option A is the right answer.

What is a Circle ?

A circle is a round figure with all the points lying in the same plane .

It is given that

Tung rotates a square around its horizontal axis of symmetry to make a solid figure.

the shape of the vertical cross section of the solid figure will be a circle that can be seen in the image attached

The rotation image is also attached and the horizontal axis is taken as straight to show the formation of a circle.

Therefore Option A is the right answer.

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2 years ago

Which number forms a Pythagorean triple with 8 and 10? Is it 6 or 15?

Firdavs [7]

The answer is 6. 15 triples with 9 and 12

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3 years ago

Bob drew a line he thought was close to many of the points and found the equation of the line. He used the points (165, 168) and

ioda

We will see that the linear equation is:

y = 1.1*x -13.5

b) The predicted height is 164.7cm

<h3>How to get the linear equation?</h3>

A general linear equation is:

y = a*x + b

Where a is the slope and b is the y-intercept.

If we know that the line passes through (x₁, y₁) and (x₂, y₂), then we can write the slope as:

a = (y₂ - y₁)/(x₂ - x₁)

In this case, the line passes through (165, 168) and (174, 178), then the slope is:

a = (178 - 168)/(174 - 165) = 10/9 = 1.1

Then the line is:

y = 1.1*x + b

To get the value of b, we use one of the given points, for example if we use the first one (165, 168) we must have x = 165 and y = 168, replacing that we get:

168 = 1.1*165 + b

168 - 1.1*165 = b = -13.5

The equation is:

y = 1.1*x -13.5

Now we want to find the height of a person with an arm span of 162cm, then we replace x by 162 to get:

y = 1.1*162 -13.5 = 164.7

The predicted height is 164.7cm

If you want to learn more about linear equations, you can read:

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2 years ago