Answer:22
Step-by-step explanation:
Answer:
Its base is 7
Step-by-step explanation:
6 x 7 = 42
42 ÷ 2 = 21
The base is 7
Answer:
slope=∆y/∆x=9+5/-4-3=14/-7=-2
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How do you solve this? [question in attachment]

In order to find the perimeter of a shape, we should add all of its sides.
Since a triangle has only 3 sides, we add 3 sides together, like so:-
⇒ 9x-7+12x-13+3x+8
Combine like terms:-
➪ 9x+12x+3x-7-13-8
Which simplifies to
➪9x+15x-7-21
On further simplification,
➪24x-28
So we conclude that the perimeter of the triangle is 24x-28 units.
<h3 /><h3>Good luck.</h3>
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