How do you deduce by calculation whether a shape is a right angled triangle

what's the question?

step-by-step explanation:

there is no question.

think the answer would beb

answer:

c) the x-coordinate of the center of the circle increases by 3

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: