Whai si (3x+5) (x-2)
1 answer:
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Answer:
See Below.
Step-by-step explanation:
We are given that ∠1 and ∠7 are supplementary.
And we would like to prove that a is parallel to b.
Statements: Reasons:
Given
Supplementary Angles
Definition of Supplementary
Congruent Supplements Theorem
Corresponding Angles Converse
And we are done!
Answer:
<em>5</em><em> players participated in the tournament.</em>
Step-by-step explanation:
In a small chess tournament, 20 matches were played.
Let us assume that n number of players participated in the tournament
As in each game 2 players play, so the number of ways they can play is,
As they played 2 games with every other participant in the tournament.
So the total number of games is,
But it is given to be 20, so
As , so we get n=5.
Therefore, 5 players participated in the tournament.