In class we found the perimeter and area of rectangles and triangles. We have a triangle with sides (2x + 5), (x + 8) and (7x).
1. (15 points) Explain how you find the perimeter of a triangle.
2. (5 points) What is the perimeter of the triangle with sides given above. Show and explain each step. Make certain to simplify your answer.

10x+13

Step-by-step explanation:

Step 1:

1)

The perimeter of any given triangle is the sum of all its sides.

For example if we have a triangle with sides x,y,z then the perimeter of this triangle can be obtained by taking the sum of the sides. So in this case , the perimeter would be x+ y+ z

Step 2:

Given that the sides of the triangle are 2x+5 , x+8 , 7x

To find the perimeter of this triangle we need to sum the given sides.

This would be

2x+5+x+8+7x = 10x + 13

So the perimeter of the given triangle is 10 x + 13

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v

correct answer is c. just did it

step-by-step explanation: