Atriangle with sides lengths 7, 9 and 11 is a right triangle. true or false

You can check whether this is true using Pythagoras' Theorem. The Pythagorean Theorem:

a² + b² = c², where c is the hypotenuse of a right triangle.

Let's plug in the given values and check the validity of the statement.

a² + b² = c²

7² + 9² = 11²

49 + 81 = 121

130 = 121

This is false. Thus,

False - a triangle with side lengths 7, 9, and 11 is not a right triangle.

Answer is False.

You can check by doing a^2 + b^2 = C^2

(7)^2 + (9)^2 = (11)^2

49 + 81 = 121

130 = 121

This is not a true statement, which makes it false. This is a triangle, but not a right one.

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

idc

step-by-step explanation:

idk