Round 189.939360828 to 4 decimal places

189.9394

Step-by-step explanation:

The first several digits are easy, but the last decimal place is tricky. However, you know that since the next digit is 6, you need to round the previous one up, meaning 189.9394 instead of 189.9393. Hope this helps!

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: