Question

1/2 √8/50

Answer 1

I cant make heads nor tails of what this is supposed to be asking :/

Answer 2

it is one half times the square root of 8 over 50

the radical is all over 8 over 50

Answer 3

1/2 * sqrt(8/50) or 1/(2*sqrt(8/50)?

Answer 4

1/2 * sqrt(8/50)

Answer 5

The calculator gives an answer of .2 :)

Answer 6

i need it in radical form

Answer 7

1/2 * sqrt(8/50) = sqrt(8)/2sqrt(50)
sqrt(8*50)/(2*50)=sqrt(480)/100
Now what can we pull out of 480? 16*30
4sqrt(30)/100
sqrt(30)/25

Thats what I come up with :)

Answer 8

doh! 50*8= 400 not 480

Answer 9

sqrt(400)/100 = 20/100 = 2/10 = .2

Answer 10

NOO! that doesn't make sense. why would multiply 8 by 50?

Answer 11

No radicals are allowed on the bottom of a fraction so we have to multiply by sqrt(50)/sqrt(50) to put it up top.

sqrt(8) * sqrt(50) = sqrt(8*50) = sqrt(400)

Answer 12

but wouldn't it be 400/50? =8 x 1/2? =4??

Answer 13

the top of the fraction becomes: 1* sqrt(8) * sqrt(50) = sqrt(400) = 20
the bottom of the fraction becomes: 2* sqrt(50) * sqrt(50) = 2*50 = 100

20/100 = 2/10

Answer 14

are you sure?

Answer 15

as long as 8*50= 400 then I am sure :)

Answer 16

ohk because this is on my test tomorrow and i really do not want to get it wrong

Answer 17

Do you understand how I got the answer?

Answer 18

yes because you have to rationalize because no radicals can be on the bottom! yay haha thank you. but i have another question.. 6√8 x 7√2.... 6√8 simplifies to 12√2, so does the answer become 19√2 or 84√2?

Answer 19

Lets look at that this way:

6*7*sqrt(8)*sqrt(2)=42*sqrt(8*2)
42*sqrt(16)= 42*4 = 168

Answer 20

these answers have to be in radical form though. all you have to do is simplify so would it be 19√2 or 84√2, i don't think my teacher would accept that

Answer 21

If the problem is addition than you end up with a radical. But, when you multiply radicals, the numbers underneath like radicals multiply together. If that number is a perfect product for that radical, the radical disappears. sqrt(3)*sqrt(3) = sqrt(9)=3.

Answer 22

If you square the problem statement and simplify you will get the fraction
1/25
The square root of 1/25 is 1/5

Answer 23

im so confused...

Answer 24

What part are you confused about, I am pretty good at this stuff :)

Answer 25

nevermind i think i got it. i didn't realize that you multiply the 84 by 2

Answer 26

Do you know why you multiply 84 by 2?

Answer 27

because both of the 2s are in radicals

Answer 28

good :) and: sqrt(2) * sqrt(2) = sqrt(2*2) = sqrt(4) = 2. right?

Answer 29

possibly..

Answer 30

LOL, you'll do fine :)

Answer 31

i hope so! thank you for your help!

Answer 32

what about this one? the sides of a rectangle is the square root of 14 and the square root of 20.. what is the area?

Answer 33

Might be a little late, but... the Area of a rectangle can be figured out by multiplying the length by the width (A=L*W).

A=sqrt(20) * sqrt(14) = 2*sqrt(5)*sqrt(14) = 2*sqrt(70).

What are the factors of 70: (1)(70), (2)(35), (5)(14), (7)(10).

None of these are "perfect" squares so there is nothing we can take out. So, the answer is: 2*sqrt(70).