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anonymous
 one year ago
Pyramid A is a square pyramid with a base side length of 14 inches and a height of 6 inches. Pyramid B has a volume of 3,136 cubic inches. How many times bigger is the volume of pyramid B than pyramid A? Give your answer as a percent. Provide an explanation and proof for your answer to receive full credit.
anonymous
 one year ago
Pyramid A is a square pyramid with a base side length of 14 inches and a height of 6 inches. Pyramid B has a volume of 3,136 cubic inches. How many times bigger is the volume of pyramid B than pyramid A? Give your answer as a percent. Provide an explanation and proof for your answer to receive full credit.

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Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2first step: find the area of the base of pyramid A if the base of pyramid A is a square with sides 14, what is the area of the square?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how can i find the area

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2area = (side length)^2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0sorry i really need to understand this

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so it would be side times length squared?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2the problem tells us that side length = 14 area = (side length)^2 find the area

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2right, (but we're not done yet though) this tells us that base = 196 now, we need to find the volume of pyramid A volume = (1/3)(base)(height) = ?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2right. now we need to find 100*(volume of pyramid B)/(volume of pyramid A)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so i need to multiply all those numbers right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0then it would be 122931200 :/

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2volume of pyramid B/volume of pyramid A = ?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2right, 800% that's our final answer

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you so much. i finally get it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can you help me with some other questions?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Use the chart below to answer the questions: Country Population (1997 estimate) Area (square km) U.S. 272,648,000 9,364,520 Romania 22,609,000 237,391 Ghana 18,339,000 237,533 Which of these countries has the greatest population density? Which has the least? Provide an explanation and proof for your answer to receive full credit.

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2we have three countries, (US, Romania, and Ghana) and the table tells us the population and area of each, right? population density = population/area so, we need three values: A: population of USA/area of USA B: population of Romania/area of Romania C: population of Ghana/area of Ghana can you calculate these three values, please?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2good, keep going with the other two

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2right, so Romania has the largest population density and USA has the smallest

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thanks. do have time for one more question?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The coordinates A(0, 0), B(0, 3), C(4, 3) and D(4, 0) are graphed and connected together. What 3dimensional shape will be created when this shape is rotated about the yaxis? Provide an explanation and proof for your answer to receive full credit.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you are the best thanks for helping me out

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2dw:1437327503741:dw

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2this gives us a rectangle when we draw out the 4 points, but when we rotate it around the yaxis like so, we get a cylinderdw:1437327611870:dw

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2dw:1437327633016:dw this is kinda hard to explain, but the final answer is a cylinder

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay so what formula did you use to rotate around the y axis?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2haha, there isn't a formula for this one, you kinda have to use your imagination

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2@mathstudent55 maybe you can explain? I'm really bad when it comes to explaining things like this > >

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0than how do i explain

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1@Vocaloid Excellent explanations on all three problems!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0well im glad you helped me.

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2thank you, I'm just having a hard time explaining the whole rotating plane thing, how the rectangle becomes a cylinder

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes you are really good at explaining

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1When a point that is not on the yaxis is rotated about the yaxis, it creates a circle. As you rotate the rectangle about the yaxis, a cylinder with circular bases is created.

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2right, thank you, that's the sort of thing they're probably looking for

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you so much mathstudent55 and Vocaloid

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i appreciate your time and good explanation :)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1You're welcome, but @Vocaloid is the one who deserves the thanks in this post.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how do i give you a medal mathstudent55?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1You can only give one medal per post. If you already gave one to Vocaloid, then you can't give me one.
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