--Answer--
The second one, fourth, and fifth.
--Explanation--
1. - 6.283...
2. 7.142...
3. 6.928...
4. 7.483...
5. 7.874...
Answer:

Step-by-step explanation:
The distance between point (x1,y1) and (x2,y2) on a coordinate plane is given by expression 
In the problem given coordinate points are
(0, a) and (a, 0).
Thus, distance between these points are given by

Thus , expression
gives the distance between point (0, a) and point (a, 0) on a coordinate grid.
Answer:
Difference indicates subtraction: The difference of a number and 9 is (x−9) Twice the difference means 2(x−9) We know that the answer to this is 2 , so as an equation: 2(x−9)=2.
Step-by-step explanation:
:|
D is the correct fraction
D. x+ 40 = 150 this is the answer