Question

•Solve using the square root method. Round the solution to the nearest tenth. x2 - 20 = 0!!!
•anwsers:
{-10.0, 10.0}
{-5.5, 5.5}
{-3.5, 3.5}
{-4.5, 4.5}

Answer 1

last one

Answer 2

approx.

Answer 3

add 20 to both sides...

then take the square root

there will be a positive and negative solution..

Answer 4

-4.5 and 4.5?

Answer 5

yes