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Danielle needs your help! She is practicing operations with polynomials, but she keeps making mistakes! Find the error(s) that Danielle made for each problem. Help Danielle understand her

mistake by explaining the error(s) and then correctly performing the operation.

PLEASE HELP Danielle needs your help She is practicing operations with polynomials but she keeps making mistakes Find the errors that Danielle made for each pro class=

Respuesta :

Considering the perimeter concept, we have that:

  • Danielle's mistake is that she did not consider two outside edges, one of length 6x - 4 and the other of length 12x + 3.
  • The correct perimeter, in feet, is: P = 50x + 27.

What is the perimeter of a polygon?

The perimeter of a polygon is given by the sum of all the lengths of the outside edges of the polygon.

For this problem, the outside edges are given as follows:

  • 2 of 6x - 4, due to the isosceles triangle.
  • 2 of 12x + 3, due to the rectangle.
  • 1 of 14x + 13, also due to the rectangle, and only one, because of the other part of the rectangle with the same length is internal to the prism;

Danielle's mistake is that she did not consider two outside edges, one of length 6x - 4 and the other of length 12x + 3. Considering all the edges, the perimeter is given by:

P = 2(6x - 4) + 2(12x + 3) + 14x + 13

P = 12x - 8 + 24x + 6 + 14x + 13

P = 12x + 24x + 14x + 8 + 6 + 13

P = 50x + 27.

More can be learned about the perimeter of a polygon at https://brainly.com/question/3310006

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