Answer:
ha
Step-by-step explanation:
Answer: 3
Step-by-step explanation:
Let E be the event of that student pierces ear and N be the event of that student pierces nose.
Given: 

For any two event A and B, we have

Similarly , 

Hence, 3 students have piercings both on their ears and their noses.
The function shown in the graph is a linear function, for a given linear function, the initial value is obtained at y-intercept. The y-intercept is the point where the graph cuts the y-axis. At this point the value of x is zero. Thus from the graph given, the point x=0 at y=2, hence the initial value is y=2.
Answer: y=2
Answer:
The First Table
Step-by-step explanation:
The y-values increase inconsistently, while the other tables are constant.
90
the answer is 90 but the answer i give has to be over 20 characters so i'm typing random things. have a good day:)