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2 years ago

I need help on this

Mathematics

1 answer:

IRINA_888 [86]2 years ago

7 0

Answer:

Rate of change is slope

To calculate slope its

y2 - y1 / x2- x1 = slope

Just choose 2 random sets from the table.

I’m gonna go with (0,-10) and (2,20)

Now calculate slope

20 - (-10) / 2 - 0

Solve.

30 / 2

30/2 = 15

Rate of change is 15

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cestrela7 [59]

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Answer:

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4 years ago

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4 years ago

Ryan gained $10 on a stock in the stock market. How is his profit expressed as a rational number?

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3 years ago

How do you solve this problem?

motikmotik

The arcs $AB, BC, AC$ all equal to the third of the perimeter since equilateral triangle divides them like this.

So we need to find a perimeter but we are only given the area.

Let's review,

$A=\pi r^2 \\P=2\pi r$

That means that from area we area able to calculate radius.

$A=\pi r^2\Longrightarrow r=\sqrt{\dfrac{A}{\pi}}$

Insert the numbers,

$r=\sqrt{\dfrac{36\pi}{\pi}}=6$

Then use the perimeter formula to calculate perimeter since radius is known,

$P=2\pi\cdot6=12\pi$

Now divide perimeter by 3 to get length of AB arc.

$AB=\dfrac{12\pi}{3}=\boxed{4\pi}$

Hope this helps.

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3 years ago