how do u get the sqaure roo t of 80???

Question

how do u get the sqaure roo t of 80???

Answer 1

80 breaks down into the factors 4,4,5
so Sqrt[80]=Sqrt[4*4*5]=
Sqrt[4]*Sqrt[4]*Sqrt[5]=
2*2*Sqrt[5]=
4Sqrt[5]

Answer 2

Sqaure root means the the number that multiplied by its self equals the number you are finding the sqaure root of. So to find the squre root of 80 you think of what times its self equals 80 or you just use the square root key on a calculator. The square root of 80 is 8.9442719.

Answer 3

First, look at the prime factorization of the number (80):
80 = 2 * 2 * 2 * 2 * 5

Therefore:
√80 = (√2)(√2)(√2)(√2)(√5)
√80 = 2 * 2 * √5
√80 = 4√5
√80 ≈ 8.9443

Answer 4

First, factorize the number (80):
80 = 2 * 2 * 2 * 2 * 5

Therefore:
√80 = (√2)(√2)(√2)(√2)(√5)
√80 = 2 * 2 * √5
√80 = 4√5

Answer 5

The sqrt{80} can be broken down.

You need to multiply two numbers that will produce 80. One of the numbers must be a PERFECT SQUARE.

sqrt{16} x sqrt{5} = sqrt{80}.

sqrt{16} = 4 because 4 x 4 = 16. Got it?

Final answer: 4(sqrt{5}).

The sqrt{5} cannot be broken down anymore because it is already in lowest terms.

Guido

Answer 6

sqrt(80) --- you can split 80 into its factors
sqrt(16*5) --- you know the square root of 16, so you can pull that out
4sqrt(5) --- this is your answer!

Answer 7

U use the power rule:sqrt a *sqrt b=sqrt ab.So u split sqrt 80.It will become sqrt 4 * sqrt 20.It will become 2sqrt20.

Answer 8

square root of 1/80
=square root of 1/2*2*2*2*5
for every pair offactors the square root will be one factor
square root=1/2*2*rt5
=1/4rt5

Answer 9

It is Impossible to work it out without using a calculator

Answer 10

you press 80 on the calculator then you press the radical sign(key) and the press the equal sign.