Question

what is 40 approxmantly to the nears tenth A 5.8 B 6.3 C 6.0 D 6.7

Answer 1

please help me i have been on one question for a hole hour

Answer 2

I dont understand the question. r u sure its 40?

Answer 3

oh right its square root 40

Answer 4

sorry

Answer 5

ahh OK

Answer 6

well the correct choice can be found if you square them to see which comes nearest to 40
Use ur calculator.

Answer 7

i know that but which number will i use 8 x 5

Answer 8

well wait thats 40

Answer 9

6^2 = 36 so you eliminate this and 5.8

Answer 10

are you studying methods of finding square roots at the moment?

Answer 11

dont you need to number like this 6<5.8<8

Answer 12

are something similar to this

Answer 13

also yes yes i am

Answer 14

OH Theres only one I know - not sure if i can remember it!

With regard to this problem the root is between 6 and 7 because 40 is between 36 and 49.

now you use proportion to estimate it more accurately

Is that what you are using?

Answer 15

well 36 is obviously closer

Answer 16

49 - 36 = 13
and 40 - 36 = 4

so estimate of the root is 6 + 4/13

Answer 17

82/13

Answer 18

which 6.03

Answer 19

yes now convert that to decimal form

Answer 20

well 6.30

Answer 21

so its 6.3

Answer 22

yes 6.3 is correct

Answer 23

thanks bud i understand this alot better now

Answer 24

wait

Answer 25

before you go i have to get near it not on it right

Answer 26

yes - this method only gives approximate answers.

Answer 27

oh right i forgot about that word

Answer 28

thanks welshfella

Answer 29

its pretty god - if you find sqrt 40 on calculator it gives 6.325

Answer 30

yw

Answer 31

was that a cat noise yw