The Pythagorean theorem is a^2 + b^2 = c^2. You use it when solving for the sides of a triangle.
2(21x − 7) + 4(3x + 2) = 6(2x + 9) + 3
42x - 14 + 12x + 8= 12x + 54 + 3
54x - 6= 12x + 57
54x=12x + 63
42x=63
x= 63/42
x= 3/2
862,840 is rounded to 900,000
Answer
48,000
Step-by-step explanation:
base(x)
1,200(40)
For the first one it is 4n^2-4
