40 + 30s = 220
30 for each student (s) and the one charge of 40 would get the tutor 220 dollars.
PLEASE HELP ASAP! BRAINLIEST!<br>
Is this a function???<br>
{(0,2),(1,4),(2,8),(3,16),(4,32),(5,64)}
Svetradugi [14.3K]
Answer:
yes
Step-by-step explanation:
it passes the verticle line test
the x-values only goto one y-value
Answer:
y=90 degree
Step-by-step explanation:
bcz this triangle is drawn in the semi-circle and the greatest angle of triangle in a semi-circle is always right angle.
Answer:

Step-by-step explanation:
This is the distance formula for cartesian coordinate systems, or your typical xy graph. If given two points to find the distance between, you can assign '1' or '2' to the points, i.e. (1,1) and (2,2) could be: (1,1) is (x1,y1) and (2,2) is (x2,y2). It doesn't matter which point is 1 or 2. If we were to use those example points in this formula, we would have:

We can simplify and come up with:
=
We must remember that square roots can be positive OR negative, HOWEVER, because you are looking for a distance it must be positive
.
Hope this helped!