The brackets containing 7 have moved. That is, 7 is associated with something different on the left and right sides of the equation. The property that lets you do that is ...
... associative property
_____
Either way you evaluate the equation, it comes out
... 3 + 3 = 10 - 4
... 6 = 6
The appropriate choice is ...
... 6 . . . . . the second selection
The RF is 9. You could go to Easycalculations.com/statics/cumulative/relativefrequency to double check :)
Pythagorean therom!
east and the north make a right angle
a^2 + b^2 = c^2
(11)^2 + (2)^2 = c^2
121 + 4 = c^2
125 = c^2
11.2 miles = c
Well you need an equation because how many friends were at the party? x*12x10=w thats your equation or however you want to put it. the letters are your variables
The answer is (32/100)-(8/25 )
