A triangle has sides with lengths of 15 inches, 15 inches, and 19 inches. Is it a right triangle?
yes
no

To check if this triangle is a right triangle, we can use the Pythagorean theorem (shown below).

a^2 + b^2 = c^2

(15)^2 + (15)^2 = (19)^2

225 + 225 = 361

450 = 361 - False

This triangle is NOT a right triangle.

Hope this helps! :)

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

215.92 dollars is the answer