Answer:
63
Step-by-step explanation:
Total groups: 21
number of students in each group: 3
total = 21 *3 =63
Answer:
x = 7
Step-by-step explanation:
6 - 4x = -22
-6 - 6
-4x = -28
x = -28/-4
x = 7
In order to calculate the volume of a cylinder, we can use the following formula:
Where r is the base radius and h is the height.
If the circumference is 8, we have:
Now, calculating the volume, we have:
So the correct option is the second one.
We can find the side length of square 3 by dividing by 4, which is 9.
Then, we find the side length of square 2 by dividing it by 4, which is 12.
To find the AREA of square 1, we do a^2+b^2=c^2. This is basically adding up area of square 1 and square 2 to get square 3.
a^2+b^2=c^2
9^2+12^2=c^2
81+144=225
So the area is 225 units.
