$7^{2x+3}$+42* $7^{x}$-1=0
f=-4.9x^2+20x
b=x1/4 × x3/4
-4x-6=-2x-4
Considere os conjuntos numéricos A, B e C definidos da seguinte forma:
● A = {x ∈ N ∣ x ≤ 10}
● B = {2, 4, 6, 8, 10, 12}
● C ...
f=-4.9t^2+20t
4:3
f=-4.9t2+20t
You go shopping and buy x shirts for 12 dollars and y jeans for 28 dollars. The total spent is 84 dollars. Write an equation in st...