## All Tasks

#### Divide two fractions

What is the result of the division in this photo?

# Fractions

Training

5

#### An important limit about e

$(1 + \frac{1}{x})^x$ has the limit $e$ only when $x$ tends to ... ?

# Continuity & limit of functions

Reasoning

12

#### Fraction division

Fill in the blanks:

# Fractions

Learning

6

#### Reciprocal of a fraction

What is the reciprocal of $\frac{9}{17}$? Write it as a fraction.

# Fractions

Learning

6

#### Development in Followers

Leonels Instagram account gained a lot of followers in the last three months: In June he had 3249 followers, in July there were already 3380 and in August the total number added up to 3502.
Now he wants to apply for brand sponsoring in his favorite chocolate company and prepared a diagram displaying the number of followers on his account.
In the title image you see three different versions of this diagram.
Have a think about the effect of the three diagrams.
a) Which of the diagrams displays the data in a neutral way?
b) Which diagram would Leonel use if he wishes to impress the company on first glance?
Return the number of the respective diagram in the answer boxes below. Return 1 for the pink diagram, 2 for the yellow diagram and 3 for the green diagram.

# Standard diagrams

Reasoning

7

#### Football Stadium

There are 845 People sitting in a football Stadium and watching a game. 425 of them only drink lemonade. 233 eat only a Bratwurst and 98 eat a Bratwurst and drink lemonade. How high is the relative frequency of the people drinking at least lemonade or eating a Bratwurst? Answer in percentage and round to two digits.

# Probability

Training

7