3 years ago

Which relation is a function

Mathematics

1 answer:

Artemon [7]3 years ago

5 0

I think that is the second one

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The diameter of a cookie is 2 inches. If pico’s 3.14, what is the area of the cookie, rounded to the nearest 10th?

Amanda [17]

For this case we must find the area of the cookie, knowing that it has a circular shape. By definition, the area of a circle is given by:

$A = \pi * r ^ 2$

Where:

r: It is the radius of the circle

According to the data we have:

$r = \frac {2} {2} = 1 \ in$

Thus, the area of the cookie is:

$A = \pi * (1) ^ 1$

We have $\pi = 3.14$

$A = 3.14 * 1\\A = 3.14$

We round:

$A = 3.1$

Thus, the area of the cookie is $3.1 \ in ^ 2$

Answer:

$3.1 \ in ^ 2$

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3 years ago

Find the value of y if x equals 20? -2x+4y=-4

sammy [17]

x=20

-2(20) + 4(y) =-4

-40+4y=-4

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y=9

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Step-by-step explanation:

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7/8 first week
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