Answer:
Step-by-step explanation:
(x2 - y2)2 + (2xy)2 = (x2 + y2)2
1. Let x = 2 and y = 1 .
2. x must be greater than y
- as the sides of a triangle must be positive.
We can enter any positive integer values for x and y as long as x > y because we are dealing with an identity.
3. Then substituting, we have
(2^2 - 1^2)^2 + (2*2*1)^2 = (2^2 + 1^2)^2
3^2 + 4^2 = 5^2
9 + 16 = 25
25=25
So the triple is 3,4 and 5.
4. At least one leg must be even because one term (2xy) must be even - multiplying by 2 always gives an even value.
Yes, 5/60, 5 divided by 5=1. 60 divided by 5= 12. Leaving you with 1/12. Meaning that both fractions are equivalent
Answer:
21
Step-by-step explanation:
48 ÷ 3 = 16
16 + 5 = 21
$6.40
All beads and pendants = $19.20, and the beads equal $12.80, so 12.80 + ? = 19.20. So you would use the equation. 19.20 - 12.80, which equals 6.40.