Answer:
it needs to be at least 20 to win.
Step-by-step explanation:
Answer:
D.
Step-by-step explanation:
Answer:
Only one student, Melinda used it right.
Step-by-step explanation:
Associative property lets us place our brackets the way we want and the result would be unchanged.
Here: (13 + 15 + 20) + (20 + 47 + 18).
So, we can place the brackets in any form, like (13 + 15) + (20 + 20) + (47 + 18).
There are many ways to do it. Melinda's was is yet another example.
Note that Associative property does not hold for subtraction.
The answer is 9 1/5 simplified.
Too lazy to make up an explanation or change it to a mixed number even tho it is easy...
Answer:
Step-by-step explanation:
- <em>When planes intersect it forms a line that belongs to both planes</em>
In this case we have the plane P and the plane with B, C, D points on it
The intersection line is BC as we see on the picture
