Ridig motions
What are the three ridig motions?
Translations, rotations and reflections
If i apply a rigid motion to a shape, the final shape is _____ to the initial one.
Similar
What is the fundamental principle of counting?
When we have a process by steps, the number of way to do it is the multiplication of the steps.
What are the three representations for probability?
What are the coordinates of the point (3,4) after a horizontal translation by 3 units?
(6,7)
When we do a dilatation we ______ each of the coordinates.
Multiply
What is the difference between permutations and combinations?
In permutations we consider the order, in combinations we don't
In what range of numbers can a probability be?
Between 0 and 1.
What are the coordinates of the points (3,1) and (0,0) after a reflection through the x-axis?
(3,-1) and (0,0)
When we do a contraction, we ________ each of the coordinates
Divide
How many lines of 4 people can we do with 10 people?
There are 5040 possible lines
When rolling a D-20, what is the probability of getting a number greater or equal than 15?
1/4, 0.25 or 25%
What are the coordinates of (1,0) after a 270° rotation?
(0,-1)
If we do a dilatation by 4/3 of the points (0,4) and (-1,3), the resulting points are
(0,16/3) and (-4/3,4)
In a ice cream store they offer 5 flavors of ice cream and 3 toppings. If i want to build a two floored ice cream with 1 topping, how many options do i have?
75 possible combinations
When rolling two dices and taking their sum, what is the probability of getting a 2?
1/36, 0.03 or 3%
If we start at (-5,-3), do an horizotal translation by 1.5 and then a reflection through the x-axis. The final coordinates are _____
(-3.5,3)
If we do a contraction by 2 of the points (-5,10) and (24,-20), the resulting points are
(-2.5,5) and (12,-10)
In how many ways can i pull 2 cards from a 50 card deck?
There are 1326 ways.
When rolling a dice and tossing a coin, what is the probability of getting an even number and tails at the same time?
1/4 or 0.25 or 25%