The equations are dependent (they're the same equation).
If you multiply the bottom one by 5, you get the top one.
The rationalized form of 1+ √2/1-√2 is -2√2-3
Simplify both sides
2.3=y+7.9
flip the equation.
y+7.9=2.3
Subtract 7.9 from both sides.
y+7.9-7.9=2.3-7.9
y=-5.6
hope this helps!
Answer:
-2r^3+4r^2+12r-4
Step-by-step explanation:
6r^3-2r^2+12r-4-8r^3+6r^2
(6r^3-8r^3)+(-2r^2+6r^2)+12r-4
simplify
-2r^3+4r^3+12r-4
For the first hour its 24, then 48, then 72, then 100!!!