The slope of the line that passes through the pair of point (5, 7), (2, 1) is 2
<em><u>Solution:</u></em>
Given that line that passes through the pair of point (5, 7), (2, 1)
To find: slope of the line
<em><u>The slope of line is given as:</u></em>
For a line passing through two points 
and 
slope is given as:
Here in this problem,
<em><u>Substituting the values in above formula,</u></em>
Thus the slope of given line is 2
Answer:
25
Step-by-step explanation:
Yes, they are.
If the triangles have three corresponding angles equal means that they are either similar or congruent.
The definition of congruent means that the sides have the same length. That is precisely what the statement says.
So, being the lengths of the corresponding angles the same the two triangles are identical, this is they are congruent.
Commutative because your switching the order
Answer: 
Step-by-step explanation:
Given
It takes 20 min and 30 min for a person and his friend to paint a wall individually i.e.
In 1 min they cover 
part and 
part of wall respectively.
If the work together, 1 minute work is
Time required will be reciprocal of it
