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P4thing
03.05.2021 •
Mathematics
Un atleta lanza una bala a 23 m de distancia. La trayectoria del lanzamiento se inicia a 2 m de altura y con una elevación de 45º. Calcula: a) el tiempo que está la bala en el aire, b) la velocidad inicial y c) la altura máxima que alcanza en su movimiento.
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Ответ:
We are given the functions:
f(x) = 4 x – 5 ---> 1
g(x) = 3 x + 7 ---> 2
To find for the value of f(x) + g(x), all we have to do is to add equations 1 and 2:
f(x) + g(x) = 4 x – 5 + 3 x + 7
f(x) + g(x) = 7 x + 2 = y
In this case, for any real number value assign to x, we get a real number value of y. This is because the function is linear.
Therefore the domain of the function is all real numbers.