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Otrada [13]
3 years ago
6

If the perimeter of a square is 80 m, find its side and its area.​

Mathematics
2 answers:
Katarina [22]3 years ago
8 0

Answer:20

Step-by-step explanation:

viktelen [127]3 years ago
4 0

Answer:

400 area

20 side

Step-by-step explanation:

80 divided by 4 = 20 so on each side of the square the perimeter is 20

20 x 20 = 400 area

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What is communication​
Dovator [93]

Answer:

An interaction that you do verbally or physically to let someone know something.

5 0
3 years ago
Read 2 more answers
M is directly proportional to r2.when r=2,m=14.Work out the value of r when m =224
balandron [24]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ M = k x r^2

Substitute in the values:

14 = k x 2^2

Divide both sides by 2^2 to find k:

k = 3.5

Substitute the new values in:

224 = 3.5 x r^2

Divide both sides by 3.5 to find r^2

r^2 = 64

Square root it:

r = 8

<h3><u>✽</u></h3>

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6 0
3 years ago
A set of numbers is shown: {0, 1.4, 3.2, 4, 8, 12} Which of the following shows all the numbers from the set that make the inequ
stiv31 [10]
5x + 3 \geq 23
5x \geq 20
x \geq 4
So it can be {4, 8, 12}

If this helps, can you give me the brainliest answer? I need it...

Thank you very much.
7 0
4 years ago
What is 1/4 divided by -1/2?
Sergio039 [100]

Answer:

1/2

Step-by-step explanation:

KEEP 1/4 CHANGE the sign to multiplication FLIP 1/2 to 2/1

new equation: 1/4 x 2/1

now we can solve

we do: 1 x 2= 2

so 2 is our nominator

then we do: 4 x 1= 4

so 4 is our denominator

combine the nominator and denominator and we get

1/2 which in decimal form is 0.5

3 0
2 years ago
Think about the function f(x) = 3 - 2x.<br><br> What does the notation f(0) mean?
dlinn [17]
In order to find this you have to replace any x with zero therefore we will have
3 - (2*0) => 3-0 = 3
so the answer is 3
5 0
2 years ago
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