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Thepotemich [5.8K]
3 years ago
11

A solid cone of height 12cm and radius 9cm is recast into a solid sphere. Calculate the surface area of the sphere​

Mathematics
2 answers:
Nana76 [90]3 years ago
7 0

Answer:

1017.8

Step-by-step explanation:

this is the formula 4πr2

hope this helps: )

Fofino [41]3 years ago
3 0

Answer:

Step-by-step explanation:

Volume of cone = π9²⋅12/3 = 324π cm³

volume of sphere = 4πr³/3 = 324π

r = ∛243

surface area of sphere = 4πr² ≈ 155.8π

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Anyone willing to help? Surprise included
AveGali [126]

Answer:

An arithmetic sequence has a constant difference between each term.

For example: 2,4,6,8,10,12,…

We can see clearly that all the terms differ by +2.

We call this the common difference, d.

A geometric sequence has a constant ratio (multiplier) between each term.

An example is: 2,4,8,16,32,…

So to find the next term in the sequence we would multiply the previous term by 2.

This is called the common ratio, r.

These sequences are closely related as they both have the same first term, but I hope you can see how different they become if they have a common difference or a common ratio.

We can create a decreasing arithmetic sequence by choosing a negative common difference.

Similarly, a decreasing geometric sequence would have a common ratio of less than 1.

Step-by-step explanation:

4 0
3 years ago
Write the number in 2 other forms 7.632 (Please Help. ) :)
expeople1 [14]
I think you mean a different way it can be written.
7.632 can be written as a
—>mixed number<— 7 and 79/125
Or
As a —>percentage<— it is 763.2%
Or
As a —> simplistic fraction<— it is 954/125

Hopefully this helps...
4 0
3 years ago
Read 2 more answers
Could someone help with these two pls
WINSTONCH [101]

Answer:

The first one the slope is 0.
The second one the slope is 1/2

3 0
3 years ago
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On Tuesday Susie buys three new video games from the store. On Wednesday, she sells half of her video games in order to make ext
bazaltina [42]

Answer:she had 11 video games on Monday.

Step-by-step explanation:

Let x represent the number of video games that Susie had initially.

On Tuesday, Susie buys three new video games from the store. This means that the total number of video games that Susie had would be x + 3

On Wednesday, she sells half of her video games in order to make extra money. This means that the number of video games that she sold is

(x + 3)/2. The number of video games left would be

x - (x + 3)/2

If she has 4 video games left after selling, it means that

x - (x + 3)/2 = 4

2x - (x + 3) = 8

2x - x - 3 = 8

x - 3 = 8

x = 8 + 3 = 11

4 0
3 years ago
How many miles is her road trip
ozzi
Answer B) 265 miles

She has driven 75 miles per hour for 3 whole hours. To find the miles she has driven multiple the miles per hour and the amount of time she has driven. This is 225.

Then she drove 40 miles per hour for only 1 hour. She only drove 40 miles. Add 225 + 40. This gives you 265 miles.
7 0
3 years ago
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