as y varies directly with x, the following equation can be established.
y = a * x
from the condition given by the question, we can know that
7.5 = a * 3
a = 7.5 / 3 = 2.5
thus, we can infer that the equation is
y = 2.5 * x
A = b√x+c
a/b = √x+c
(a/b)^2 = x + c
(a/b)^2 - x = c
Answer:
a^2 + b^2 = c^2
3^2 + b^2 = 5^2
9 + b^2 = 25
b = _/16
b = 4
Explanation:
Pythagorean Theorem
Números que suman 6:
3 + 2 + 1 = 6=> 3^2 + 2^2 + 1^2 = 9 + 4 + 1 = 14
4 + 3 - 1 = 6 => 4^2 + 3^2 + (-1)^2 = 16 + 9 + 1 = 26 => do not use negative numbers, because that will increase the other numbers.
5 + 1 + 0 = 6 => 5^2 + 1 + 0 = 25 + 1 + 0 = 26
4 + 2 + 0 = 4^2 + 2^2 + 0 = 16 + 4 = 20
When you use zero the you increase the sum of the squares.
Then the three numbers that yields the minimum sum of the squares is 1, 2 and 3.
