9514 1404 393
Answer:
64.6
Step-by-step explanation:
One standard deviation is 4.3. Then +2 standard deviations is ...
(+2)(4.3) = +8.6
This amount added to the mean gives ...
56 +8.6 = 64.6 . . . . +2σ from the mean
Answer:

Step-by-step explanation:
I hope this helps
Answer:
1. Statement: <2 and <5 are supplementary. Reason: Given
2. Reason: Vertical
3. Reason: Consecutive interior angles
4. Statement L is parallel to m. Reason: transversal makes equal angles
Have a good day!
Answer:
He subtracted incorrectly
Step-by-step explanation:
You multiply 42.75 x 4 and get 171. Then you add 171+52.45=223.45 and then you subtract 223.45-18=205.45 and then you multiply 223.45 x .3333 = 68.3265 or 68.33 (rounded)