1. 3x^1 + 8 - (2x^2 + 1).....distribute the negative thru the parenthesis
3x^1 + 8 - 2x^2 - 1....now combine like terms
-2x^2 + 3x^1 + 7

2. 5x^2 + 3x - 4 - (x^2 - 6x)...same thing..distribute
5x^2 + 3x - 4 - x^2 + 6x...combine like terms
4x^2 + 9x - 4

6 0

2 years ago

Point N ( , 2 9) is on RS. A translation moves point N to its image, N'(6 3 , ). What is the distance, in units, between any poi

KatRina [158]

Hello!

Distance between two points (2,9) and (6,3) -

1. Take the Absolute Difference between the X points 2 and 6. The Absolute Difference is 4. 
2. Square 4 = 16 
3. Take the Absolute Difference between the Y points 9 and 3. The absolute Difference is 12. 
4. Square 12 = 144 
5 Add 144 + 16 = 160 
6. Take the Square root of 160 

12.6491106407

Hope this Helps at least! :)

7 0

2 years ago