As long as your indexes are the same (which they are; they are all square roots) and you radicands are the same (which they are; they are all 11), then you can add or subtract. The rules for adding and subtracting radicals are more picky than multiplying or dividing. Just like adding fractions or combining like terms. Since all the square roots are the same we only have to worry about the numbers outside. In fact, it may help to factor out the sqrt 11:

. The numbers subtract to give you -9. Therefore, the simplification is
I think the points given here are plotted linearly:
FGHI. in this case, we can tell that FG + GH + HI = FI. substituting to the expression devised, 2 units + GH + 1 unit = 7 units. This is equal to 3 units + GH = 7 units. GH is then equal to 4 units.
Answer:
True
0.08 km/ 1 min = 1 mi = 1.61 km
answer rounds to 0.05
Answer:
Myra: 24.8s (winner)
Byron: 26.3s
Step-by-step explanation:
Myra knocked down 1, so therefore there are 2 points added onto her time and it is now 24.8s.
Byron knocked down 3, so there are 6 points added on for 2 seconds per each hurdle. His time is now 26.3
Total coins in the jar = 50. Number of coins with a value less than $0.05 = 20 (the pennies). ... Probability of picking a penny = 20/50 = 40%. ... 'Odds' = 3 to 2 against it.