Answer:
3 classes
Step-by-step explanation:
The teacher can schedule 3 classes in a night because 4 1/2 divided by 1 1/2 is 3.
hope this helps!!
Answer:
The perimeter is 16 units
Step-by-step explanation:
Add up all the sides together
1+1+7+7 = 16
To solve this question, we have to find the equation of the circle with given center and where it passes. Doing this, we get that the equation of the circle is:

Equation of a circle:
The equation of a circle with center
and radius r is given by:

Center at (16, 30)
This means that 
Thus

Passes through the origin:
We use this to find the radius squared, as this means that
is part of the circle. Thus



Thus, the equation of the circle is:

For another example to find the equation of a circle, you can look at brainly.com/question/23719612
Answer: -x - 3√x + 4
(1 - √x)(√x + 4)
= √x + 4 - √x.√x - 4√x
= -x - 3√x + 4
Step-by-step explanation: