The three side lengths of a triangle are given. Which triangle is a right triangle?

Apply Pythagorean theorem: a2 + b2 = c2

The sum of the squares of the legs of a right triangle equals the square of its hypotenuse.

Step-by-step explanation:

For examples, the two following combinations: 7,12,14  and 7,10,15 will not true for the right triangles. ( The calculation is given in the picture attached below.)

I hope this answer will help you. Have a nice day !

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

$18 was the price of the t-shirt

step-by-step explanation: