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Vsevolod [243]
3 years ago
8

For the sequence an=3n(n+1) what is the value of a10

Mathematics
2 answers:
Delicious77 [7]3 years ago
5 0
The answer is 30/11 on apex, i just did it
fgiga [73]3 years ago
3 0
A(n)=330 Plug in 10 for n
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Suppose the length and width of the box in exercise 12 double. Does the surface area S double? Explain
Blizzard [7]
No, it does not.

In general, surface area is the sum of the areas of each face of a prism.  In a rectangular prism, we have length, width, and height.  

The area of the bottom of the prism and the top of the prism is the same, and can be represented as l*w.  This means that together, it is 2lw.

The area of the left and right faces of the prism is the same, and can be represented as l*h.  This means that together, it is 2lh.

The area of the front and back faces of the prism is the same, and can be represented as w*h.  This means that together, it is 2wh.

This gives us the equation

SA = 2lw+2lh+2wh

If we double the length and width, making them each 2l, we then have:

SA = 2(2l*2w) + 2(2l*h) + 2(2w*h)
      = 2(4lw) + 4lh + 4wh
      = 8lw + 4lh + 4wh

If the surface area had been doubled, we would expect 
4lw + 4lh + 4wh

No, it is not doubled.
4 0
3 years ago
Amy and Jenny shared a pizza. Amy ate 1/8th of the pizza and jenny consumed 3/8th of it. What fraction of the pizza did the girl
dimulka [17.4K]

Answer:

In total they ate 4/8 of the pizza. Meaning that together they ate 1/2 of the pizza.

Step-by-step explanation:

1/8 plus 3/8 equals 4/8 which is equal to 1/2.

6 0
3 years ago
8 mi. 133 yd. 2 ft. – 5 mi. 107 yd. 2 ft.
Murrr4er [49]

8 mi. 133 yd. 2 ft. - 5mi. 107 yd. 2 ft.

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= 3 mi. +26 yd.

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8 0
3 years ago
Review the attachments. Review the process of solving an equation and fill in the blanks.
Nezavi [6.7K]

Answer:

1) Combine like terms

2) \sqrt[3]{x} =3

3) cube both sides of the equation

4) 4\sqrt[3]{27} +8\sqrt[3]{27}=36

5) 4(3) + 8(3) = 36

Step-by-step explanation:

1) Combine like terms

2) \sqrt[3]{x} =3

3) cube both sides of the equation

4) 4\sqrt[3]{27} +8\sqrt[3]{27}=36

5) 4(3) + 8(3) = 36

5 0
2 years ago
Describe a real life multiplication situation for which an estimate makes sense
Drupady [299]
If you are trying to create a garden of potted plants, you would find out how much soil each pot needs/holds and multiply that by how many pots you plan to use. then you would go to the store for potting soil, which let’s say came in smaller packs and you need to purchase multiple. use multiplication estimation to estimate how many bags you’d need.
I know this is a dumb example...sorry this is one I remember from my fourth grade math teacher ahah
3 0
3 years ago
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