y intercept : (0,6)
Explanation:
Use the formula:
. y = mx + b
Find m (the slope), using 2 random points of the graph: (-2,0) and (1,9)
. m = (y-y1) / (x-x1)
m = (0-9) / (-2-1)
m = -9 / -3
m = 3
Replace m in the equation:
. y = 3x + b
Find b by replacing y and x by a random point of the graph: (1,9)
. 9 = 3*1 + b
b = 9 - 3
b = 6
Replace b in the equation:
. y = 3x +6
To find the y-intercept replace x by 0 in the equation:
. y = 3*0 +6
y = 0+6
y = 6
=> y-intercept : (0,6)
Answer:
45
Step-by-step explanation:
Hi there!
To start, let's find the area of the bases. Since we're finding the area of two triangles, we don't need to put a 1/2 in front of our equation. This leaves us with 24 x 5 for the area of our bases. Now, we need to find the lateral area. We have two congruent rectangles and one that is different. Using the provided measurements, this leaves us with 2(5 x 13) + 1(20 x 24). Next, we need to add the lateral area to the base area. This leaves us with the surface area, which is 730ft^2. Also, the perimeter of the base is 50ft, the height is 20ft, and the base area is 120ft.
Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
Answer:
102 tiles needed to cover the entire floor.
Step-by-step explanation:
Given : A worker is tiling the floor of a rectangular room that is 12 feet by 15 feet. The tiles are square with side lengths feet.
To find : How many tiles are needed to cover the entire floor?
Solution :
A rectangular room that is 12 feet by 15 feet.
The area of the room is
The tiles are square with side lengths feet.
The area of the tile is
Number of tiles needed to cover the entire floor is
Therefore, Approximately 102 tiles needed to cover the entire floor.