GIVING BRAINLIEST, CANT SLEEP TIL THIS IS DONE. (basic geometry) put the points up in hopes of an answer. someone mind showing me how to do this?

Step-by-step explanation:

11.

The triangle is isosceles

Equal sides have length of

13.

The triangle is isosceles

x is one of the angles of a right triangle

The other angle of this triangle is same as corresponding angle = 63°

Step-by-step explanation:

11.  isosceles triangle with two equal side lengths

     5x - 11 = 3x - 3

     5x - 3x = 11 - 3

     2x = 8

      x = 8 / 2

      x = 4

13. isosceles triangle mirrored right triangle

    with angles 63°, 90° and x , find x

    90 + 63 + x

    90 - 63 = x

     x = 27°  

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation:

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here