Question

Why does this make no sense to me at all

If you have Sqrt of 1-(.50)^2 the calcultor says its .87

How is that possible
The sqrt of 1 is 1
1-.5 is .5

Can someone explain this

Answer 1

\[\sqrt{1-(.50)^2}\]

Answer 2

be careful when entering it

Answer 3

use brackets

Answer 4

i did
and the answer in my math book is .87

Answer 5

if type in sqrt (1-(.50)^2) just liek that it says .87 how does that make sense at all
The sqrt of 1 is 1 and 1 -,5 is not .87

Answer 6

first do 1-.5^2
then take the sqrt of the answer i tried it

Answer 7

like lalaly said, you have to do the stuff under the sqrt first...

Answer 8

In addition and subtraction \[\sqrt{1-0.5^2} \cancel{=} \sqrt{1}-\sqrt{0.5^2}\]

Answer 9

the sqrt of .5 is not .87 its .7 so what is going on

Answer 10

as i said u have to find whats under the root then find the square root, u cant take the sqrt of each number individually

Answer 11

nevermind im a moron ugh i hate having breaks at school i come back from break and forget everything i KNOW how to do
sorry
thanks

Answer 12

its ok... goodluck

Answer 13

You're not a moron. Everyone forgets stuff. That's why we're here to help. :)

Answer 14

thanks guys
p.s i hate trig lol