Find the measures of -5x+32

What shape is this? A triangle?

Step-by-step explanation:

Assuming that this is a triangle with no 90 degree angles:

-5x + 32 = 180

     -32   =  -32

-5x = 148

=

-5   =   -5

x = -29.6

Assuming that this is a triangle with 90 degree angles:

-5x + 32 = 90

       -32  = -32

-5x   =  58

 =  

-5   = -5

x = 11.6

For both of these you would get a decimal so you need to provide an image or more information to your question

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240

step-by-step explanation: