Tutors Answer Your Questions about Surface-area (FREE)
Question 241693: I am not sure if I set it up correctly please help me by correcting me, or if I am right please tell me what to do afterwards because I am stuck, thank you.
Write and simplify expressions for (A) the perimeter (B) the area
It's a rectangle:
One side is 2x-3
The other side is 5x
So far I have this:
Perimeter:
2L+2W
2(2x-3)+2(5x)
4x-6+10x
I don't know what to do next
Area:
A=LW
5x(2x-3)
10x^2-15x
Here I am also at a loss, I am not sure what to do.
Please help me and correct me.
Thank you.
Click here to see answer by Edwin McCravy(20055)  |
Question 242300: Find the surface area of the following:
If they are to difficult to answer because the picture is not included just help me out with the correct formulas. Thank you.
1.Right circular cylinder topped with hemisphere.
base is 20ft height is 60ft.
2. Right circular cone topped with hemisphere.
Height of cone is 8cm and radius of hemisphere is 4cm.
Click here to see answer by scott8148(6628)  |
Question 242379: The front of a television has a total area of 320 square inches. The length of the tv is (3x - 2) the width is 16 inches both l and w include a 2 inch border around the picture tube itself. How do you find the area of just the tube?
Click here to see answer by Alan3354(69443)  |
Question 244169: If a square has an area of 200 yd. squared. What will the area of the square become if you double the length of the sides.
What i have tried:
Figuring out the sides now when it is 200, my problem is that i can't figure out those sides.
Thank you!
Click here to see answer by checkley77(12844) |
Question 244657: the length of a rectangle is four more than one-half the width of the rectangle. the perimeter of the rectangle is 50. The area of the rectangle is _______square units.
the length of the diagonal of the rectangle, to the nearest tenth is ________units.
Click here to see answer by stanbon(75887) |
Question 244712: for the lateral surface area and surface area, when you write it out... does it have a specific ending? like for volume it is cubic units. is there one for surface area and or lateral surface area or is it just what ever unit you are using?
Click here to see answer by solver91311(24713)  |
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