Todas as tarefas
Integral definida (B)
Si $f$ es una función real de variable real, continua y $F'(x)=f(x), \forall x \in \mathbb{R}$, entonces $\int_1^3 f(2x)dx$ es:
# Definite integral
Training
13
Empresa de transporte
Una empresa de transporte cobra 250 €/día por disponer de una furgoneta con conductor y 1.75 € por cada paquete, excepto el primero, que haya que transportar y descargar.
Mi empresa tiene un presupuesto máximo de 300 € diarios para transporte.
¿Cuántos paquetes puedo enviar en un transporte?
# Sequences
Modeling
8
Modelling linear functions
Imagine that you want to buy some pens. In the shop near home one pen cost 0,80 euro, online one pen cost 0,60 euro but the shipping fees are 3 euro.
How many pens you have to buy in order to spend the same money in each shop?
# Linear functions
Training
8
Two straigh lines intersection
Identify the relative positions of this two straigh lines:
$y=2x-4$
$y=2x-2$
# Linear functions
Learning
8
Point of intersection
Determine a possible point of intersection of the given two lines.
$f(x)=0,5x+4,5$
$g(x)=22-3x$
# Linear functions
Training
8
The burning down candle
A new candle is 24 cm high. After five hours a candle lose 10 cm of its height.
How long does it take for the candle to burn down completely? Give your answer in hours.
# Linear functions
Modeling
8