Question

please help guys!

solve, using the square root method: 5x^2=60. Round the solution to the nearest tenth

Answer 1

Divide 60 by 5
Then find the square root of that...
60/5 = 12

I think the square root is between 3 and 4...if you are taking up calculus you can do linear apporximation

Answer 2

it needs to be an x,y?

Answer 3

no...you just need to find the square root of 12. try using a calculator (cheats xD)

Answer 4

or make
x1=9 y1=3
x2= 12 y2=?
delta x = 3

Differentiate sqrt x

dx/(2sqrt(x)

3/2sqrt9

3/2(3)

3/6

delta y=1/2 add that to 3

3+ .5

3.5

Answer 5

so it would be 3.5,-3.5

Answer 6

yup

Answer 7

or just 3.5

Answer 8

no it's both

Answer 9

'cause if you square -3.5 you also get 12

Answer 10

thankyou!

Answer 11

np if you do use a a calcu you'll get
3.46410162 (if you round it to the nearest tenth's you get 3.5 also xD)