If the degree measure of an angle is 40° less than 3 times the degree measure of its supplementary angle, what is the degree
measure of the angle?
a 50°
b. 55°
c.125°
d. 130°

Step-by-step explanation:

The degree measure of the angle is our unknown, so we will call it x.  Taking the written words and putting them together in an equation looks like this:

x = 3(180 - x) - 40

This says "the unknown angle" {x} "is" {=} "3 times the degree measure of its supplementary" {3(180 - x)} and is also "40 degrees less" than this, so {-40}.

x = 540 - 3x - 40 and

x = 500 - 3x and

4x = 500 so

x = 125

Choice C.

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!

283 square feet

step-by-step explanation:

good luck