Answer:
sorry but i don't know how...just doing my job
to get 400 points. sorry ;{
Step-by-step explanation:
Answer:
the answer is right so idk
Step-by-step explanation:
Add the x and y and you will get 4x^4=8y^2
Answer:
To perfect the answer and great
Answer:
84 square units.
Step-by-step explanation:
<h2>Area of scalene triangle:</h2>

Here, a, b and c are the sides of the triangle. s is the semi perimeter.
a = 13
b = 14
c = 15

s -a = 21 - 13 = 8
s -b = 21 - 14 = 7
s - c = 21 - 15 = 6
