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.
Answer:
A child's education depends on the support of his or her parents. I believe that engaging with parents and making sure that they have an active role in their child's success is vital. I give parents my contact information so they can get in touch and ask any questions they have about how their child is performing, and I also provide updates about what my students have learned and accomplished.”
Step-by-step explanation:
Answer:
y =
x - 9
Step-by-step explanation:
Answer:
Rotation.
Step-by-step explanation:
There are three rigid motions (which do not change the shape and size of the figures): rotation, translation and reflection.
You make a rotation of a figure when you turn it about a fixed point (which can be inside, on an edge or outside the figure) and it is measured in degrees. The rotation can be clockwise or counterclockwise.
Required number
= 1500*(1+2%)^4
=1624(cor.to.the nearest integer)