Answer:
339.24
Step-by-step explanation:
To find the surface area, you will need to the the area of the base of the cylinder. To do that, use the formula A=pi (r)^2
The radius is half the diameter do r=3
3.14(3)^2 should give you about 28.27.
This is the area of the top and bottom of the cylinder.
Now, do 28.27x10=282.7 to find the height surface area.
282.7+28.27+28.27=Surface area.
SA= about 339.24
Answer:
slope = 2
Step-by-step explanation:
Find 2 points on the line that land perfectly on the grid. I'll choose these 2 here:
(-2, -1) and (0, 3)
Rise is the change in the y value from one point to the other, and run is the change in the x. Looking at these 2 points, y went from -1 to 3. That is a <em>rise</em> of 4. The x went from -2 to 0, so that is a <em>run</em> of 2. "rise over run" means rise literally over run in a fraction like this:
![m=\frac{rise}{run}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7Brise%7D%7Brun%7D)
The more proper way to calculate slope looks like this, but it's really the same thing in the end:
![m=\frac{y2-y1}{x2-x1}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7By2-y1%7D%7Bx2-x1%7D)
where (x1, y1) and (x2, y2) are your 2 points.
Finally, the slope of this line is:
![m=\frac{3--1}{0--2}\\\\m=\frac{4}{2}\\\\m=2](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B3--1%7D%7B0--2%7D%5C%5C%5C%5Cm%3D%5Cfrac%7B4%7D%7B2%7D%5C%5C%5C%5Cm%3D2)
That's a rise of 4 over a run of 2, and that simplifies to just a slope of 2.
Answer:
54 feet
Step-by-step explanation:
We can use proportions
1 inch 27 inches
--------- = ------------
2 feet x feet
Using cross products
1x = 54
The building is 54 feet