Answer:
Let us say the domain in the first case, has the numbers. And the co-domain has the students, .
Now for a relation to be a function, the input should have exactly one output, which is true in this case because each number is associated (picked up by) with only one student.
The second condition is that no element in the domain should be left without an output. This is taken care by the equal number of students and the cards. 25 cards and 25 students. And they pick exactly one card. So all the cards get picked.
Note that this function is one-one and onto in the sense that each input has different outputs and no element in the co domain is left without an image in the domain. Since this is an one-one onto function inverse should exist. If the inverse exists, then the domain and co domain can be interchanged. i.e., Students become the domain and the cards co-domain, exactly like Mario claimed. So, both are correct!
Answer:
8
Step-by-step explanation:
Answer:
360 inch
Step-by-step explanation:
Step 1: Converting
6inch = 6inch
5ft = 60inch
Step 2: Finding the area
Area of a rectangle = L x B
A = 6 x 60
A = 360inch
Answer:
60.458
Step-by-step explanation:
it says the answer lol
Answer:
There's no answer choices but I can give you an example.
Step-by-step explanation:
- Let's say you have
. - Think about what the closest whole number 25/4 will give you. Since 24 and 25 are close you can do 24/4 and get 6.
- Now since you took one number away from the 25 you have a remainder.
- Since the denominator is 4 your final answer would be 6
.
Hopefully this helps.
