A square has a side length of 18 centimeters what is it’s perimeter

Mathematics

1 answer:

NARA [144]3 years ago

3 0

The perimeter is 72 because all sides on a square are the same measurements so you just have to do 18 times 4 to get 72

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Anyone knows how to do 4a)

Olin [163]

Sure. Brainly just made me an Ace.

Let's plug in 1/x as the independent and xy as the dependent in point slope form:

$xy = m (\frac 1 x) + b = \frac m x + b$

We have two points (1/x,xy)=(-4,-2) and (1/x,xy)=(3,5)

That's a slope

$m = \dfrac{5- -2}{3 - -4} = 1$

So a y intercept

5 = 3 + b

b = 2

$xy = \dfrac 1 x + 2 = \dfrac{2x + 1}{x}$

That's easy to solve for y:

$y =\dfrac{2x+1}{x^2}$

When x=1 that's

$y = \dfrac{2+1}{1} = 3$

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Alenkasestr [34]

$\\ \sf\longmapsto (1-6i)+(12+i)$