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3 years ago

Find the perimeter of a square with an area of 361 square ft

Mathematics

1 answer:

goblinko [34]3 years ago

3 0

area of a square equal the side squared

A = s^2

361 =s^2

take the square root of each side

sqrt(361) = s

19 =s

We only take the positive square root because lengths have to be positive.

s = 19 ft

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Answer:

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Step-by-step explanation:

we know that

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3 years ago

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3 years ago

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padilas [110]

Hello :)

3x+y=27

-3x+4y= -42

+____________

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0 + 5y = -15

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Put "-3" for "y" in the system:

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3 years ago

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o-na [289]

Answer:

s = 6, r = 8 or s = 4, r = 7

Step-by-step explanation:

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sub (1) into (2):

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if you would like to discover more about simultaneous equations, you can have a look at my Instagram page (learntionary). I'll be posting mathematics related stuff there and some of my notes (simultaneous enq notes are already posted!)

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