2. Faça o que se pede. a) Considere a seguinte sequência:
1º termo 2, ou seja, 2.1
2º termo 4, ou seja, 2.2
3º termo 6, ou seja, 2.3​

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2

the ratios are reciprocals im positive

step-by-step explanation:

they are all positive numbers so it wouldn't be the other ones

im not sure of the names, but the answer is 48