There is 180 degrees on a straight line so you can work out the unnamed angle in the triangle by doing 180-115 which is 65
There are also 180 degrees in a triangle so to work out y you do 180 - (65+85) = 30
So y = 30 degrees
Answer:
The answer is 6.3
Step-by-step explanation:
Answer:
The area of the wall that she will paint in two rolls is <u>219.8 inches²</u>.
Step-by-step explanation:
Given:
Jenny uses a roller to paint a wall. The roller has a radius of 1.75 inches and a height of 10 inches.
Now, to find the area of the wall that she will paint in two rolls.
So, we find the lateral surface area of roller.
Radius (r) = 1.75 inches.
Height (h) = 10 inches.
So, to get the lateral surface area we put formula:
Thus, the lateral surface area of the roller = 109.9 inches².
Now, to get the area of wall that she will paint in two rolls we multiply 2 by the lateral surface area of the roller:
Therefore, the area of the wall that she will paint in two rolls is 219.8 inches².
Answer:
In repeated sampling, 95% of the intervals constructed would contain the population mean.