Question

Help please

Answer 1

can u find the distance between those 2 points ?

Answer 2

Distance between points (x1,y1) and (x2,y2) is
\(\huge d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\)

Answer 3

one moment

Answer 4

its not x2-x1?

Answer 5

it doesn't matter. x1-x2 and x2-x1 will give u same answer, (because it is squared)

Answer 6

okies, one sec :)

Answer 7

\[\sqrt{146}\]

Answer 8

121+25=146, yes thats correct.
that is your diameter, how do u find radius from it?

Answer 9

distance between endpoints of dia, gave u length of diameter

Answer 10

Im not sure :s

Answer 11

Diameter = 2* radius
so u have diameter = \(\sqrt{146}\)
so, radius = ?

Answer 12

24.17?

Answer 13

did u double the diameter? no, you should divide the diameter by 2

Answer 14

6.042?

Answer 15

that is correct radius :)
did u clearly understand all steps ?

Answer 16

Yes, i was writing them down as we went along. Havent done this kind of math in so long. When it says round that to the nearest hundredth what would it be? o.0

Answer 17

means u keep just 2 digits after decimal point.
here, 6.04

Answer 18

round to nearest hundredth, 2 digits after decimal point
round to nearest thousandth, 3 digits after decimal point

Answer 19

Ok thanks! :)

Answer 20

welcome ^_^