Answer:
908 feet²
Step-by-step explanation:
To paint walls, we will be looking for surface area.
Since this is a room and we have three measurements, we can assume there will be the floor, the ceiling, and four walls. This means we will be looking for 6 sides in total.
-> See attached for a diagram I made of the sides we need
-> Keep in mind opposite pairs of walls will be the same, and the floor and ceiling will be the same.
We end up with the following sides:
11 * 12
11 * 12
11 * 14
11 * 14
12 * 14
12 * 14
We can simplify this to the following:
(2(11 * 12)) + (2(11 * 14) + (2(12 * 14) = 908 feet²
908 feet² must be covered with paint.
Answer:
Problem 8 is No and Problem 9 is Yes
Area of semicircle is given by:

r is the radius, and we are given the diameter. Radius is half the diameter, so it's 2.5m. Let's plug that into the formula (using 3.14 as an estimation for pi):

So, the area of this semicircle is
9.81m².
I uploaded the answer to a file hosting. Here's link:
tinyurl.com/wpazsebu
Like terms have to have the same variables and the variables have to have the same powers.
3x and 6x are like terms.
3x and 6y are not.
4y^2 and 7y^2 are like terms.
4y^3 and 7y^6 are not.
2xy and 5xy are like terms.
2xy^2 and 5x^2y are not
2xy^2 and 5xy are not.