A River Oaks Pools is trying to calculate the perimeter of the pool so they will know how many bricks to buy for the deck of the pool. Each square on the grid represents a square that is 3ft x 3ft. What is the perimeter of the pool?
Solution:
On the first row and last row, there are 7 numbers of squares. And on the 2nd to 5th row, there are 11 number of squares.
In getting for the perimeter of the area, we'll have to divide the regions.
Dividing the regions, we'll get three figures/planes :
2 rectangles with Length = 3ft x 4 number of squares and Width = 3ft x 2 number of squares
Thus, for the 2 rectangles,
Perimeter = 2(2L+2W) (times two since there are 2 rectangles)
Perimeter = 2(2(12)+2(6))
Perimeter = 72 ft
Another figure was formed is a square with a 21ft x 21ft
Perimeter = 4(21ft)
Perimeter = 84 ft
Add the two equivalent perimeters:
Total Perimeter = 72+84
Total Perimeter = 156 ft
Me and the other people in the room
On my paper I have A hope it’s right cause my professor helped me on zoom with this question
Answer:
Explanation:
Part D
For d, the very first thing you need to do is figure out which one of the steps you are going to use. You have 2 in b^2 + 2, so even if b = 0 the two still matters. It means that you use f(x) = -x + 3 because that's what you use when you have 2 or above.
The second thing you have to realize is that f(x) = -x + 3 has the meaning of what ever you see on the left in the place of x, you put on the right wherever there is an x.
In this case f(b^2 + 2) = -b^2 - 2 + 3 = 1 - b^2
I'm not sure enough to give you an answer for the domain and range, not this time of night.
