18*35 - number of the students at school.
x- is a number of classes if it is going to be 30 students per class, then
30x - number of the students at school.
So,
18*35 = 30x
x=(18*35)/30 = 21 classes should be if it is going to be 30 students per class.
21 - 18 = 3 new classes must be formed.
Well first we have to find the area of the rectangle and the circle. Then we subtract the area of the circle from the rectangle. The area of the rectangle is length times width so 20*8.5=170. So the area of the rectangle is 170 cm^2 and now we have to find the area of the circle. To find the area of the circle, we have to find the radius and square it then multiply by pi. Based on the picture, we can tell that the diameter is 8.5 and the radius is half the diameter. So the radius is 4.25 and now we need to square it which is about 18.06. Now we take that and multiply by pi to get 56.71. Now we know that the area of the circle is 56.71 cm^2 so now we can subtract the area of the circle from the area of the rectangle. 170 - 56.71 = 113.29. Our answer is 113.29 cm^2. I hope this helps. Have a nice day!
Answer:
= (n + 1)²
Step-by-step explanation:
The terms are square numbers with each term shifted to the right by 1
That is 1, 4, 9, 16, 25, 36, .....
Thus to obtain 4 in the first position, then
n = 1 → (1 + 1)² = 2² = 4
To obtain any term add 1 to its position in the sequence, that is
= (n + 1)²
Answer:
The slope of this line is -2/7
Step-by-step explanation:
To find the slope between any two points, use the slope formula.
m(slope) = (y2 - y1)/(x2 - x1)
m = (3 - 1)/(-4 - 3)
m = 2/-7
m = -2/7
The answer I would put would be D.