<span>They are finite sums of expressions of the form where a is a constant, x is the variable and k is a non-negative integer</span>
By definition, the perimeter of the triangle is the sum of its sides.
We must then use the formula of distance between points:

We now look for the longitus for each of the sides:
For L1:

For L2:

For L3:
Then, the perimeter is given by:
P = L1 + L2 + L3
Substituting values we have:
Answer:
the perimeter of triangle ABC is:
none of the above.
I think it’s X=-3+(the square root of 2)
T = 5.34 + 0.78m
T = 5.34 + 0.78 * 5
T = 5.34 + 3.9
T = 9.24
Tina was charged $9.24 at the car wash for 5 minutes.
B because for it to be a function one X value cant have more than one Y value and B is the only one that follows the rule