The system ⎧⎩⎨a2+b2−c2=05a−b=ca+b+c=30 has exactly one solution. find the solution by using substitution. enter your answer as an ordered triple in the format (a, b, c), like this: (42, 53, 64)

(5,12,13)

Step-by-step explanation:

You are given the system of three equations

The second equation states that

Substitute it into the first and third equations:

From the last equation

Substitute it into the first equation

Then

The solution is (5,12,13)

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing

step-by-step explanation:

answer:

c 60% on edg