What are the coordinates of the centroid of a triangle with vertices at D (0, 0), E (–8, 0), and F (–7, – 6)? ANSWERS: A) (–5, –2) B) (2, 5) C) (–2, –5) D) (5, 2)

A) ( -5 , -2)

Centro-id of  a triangle  = ( -5 , -2)

Step-by-step explanation:

Given  the  vertices at D (0, 0), E (–8, 0), and F (–7, – 6)

Centro-id of triangle

                     =  

                    =

                    =

                    = ( -5 , -2)

Final answer:-

Centro-id of  a triangle  = ( -5 , -2)

Hello!

Let's use 'x' to represent the cost of the burger, and 'y' to represent the cost of the hotdog.

2x + y = 482

× + 2y = 370

2x + 47 = 740

-3y = -258

y = 86 cents

2x + 86 = 482

2x = 396

x = 198

A burger costs $1.98 and a hot dog costs $.86

I hope this didn't confuse you, I'm not very good at explaining!