Listen to lean on me by no cap
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:
![A_{L} =2\pi rh](https://tex.z-dn.net/?f=A_%7BL%7D%20%3D2%5Cpi%20rh)
![A_L=2\times 3.14\times 1.75\times 10](https://tex.z-dn.net/?f=A_L%3D2%5Ctimes%203.14%5Ctimes%201.75%5Ctimes%2010)
![A_L=109.9\ inches^2.](https://tex.z-dn.net/?f=A_L%3D109.9%5C%20inches%5E2.)
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:
![109.9\times 2\\\\=219.8\ inches^2.](https://tex.z-dn.net/?f=109.9%5Ctimes%202%5C%5C%5C%5C%3D219.8%5C%20inches%5E2.)
Therefore, the area of the wall that she will paint in two rolls is 219.8 inches².
Simplify 1/3(6x - 15) to 6x - 15/3
6x - 15/3 = 1/2(10x - 4)
Factor out the common term; 3
3(2x - 5)/3 = 1/2(10x - 4)
Cancel out 3
2x - 5 = 1/2(10x - 4)
Simplify 1/2(10x - 4) to 10x - 4/2
2x - 5 = 10x - 4/2
Factor out the common term; 2
2x - 5 = 2(5x - 2)/2
Cancel out 2
2x - 5 = 5x - 2
Subtract 2x from both sides
-5 = 5x - 2 - 2x
Simplify 5x - 2 - 2x to 3x - 2
-5 = 3x - 2
Add 2 to both sides
-5 + 2 = 3x
Simplify -5 + 2 to -3
-3 = 3x
Divide both sides by 3
- 1 = x
Switch sides
<u>x = -1</u>
Answer:
225° or 315°
Step-by-step explanation:
If sin Ф = -1, Ф must be in Quadrant III or Quadrant IV.
sin Ф = (opposite side) / hypotenuse. The opposite side is negative only in Quadrant III and Quadrant IV.
The angle Ф is either 225° or 315°
Answer:
4 and 23
Explanation:
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