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maria [59]
3 years ago
10

Check out this cube:Find the surface area of the cube (above) using its net (below).​

Mathematics
2 answers:
mihalych1998 [28]3 years ago
7 0

Answer:

54

Step-by-step explanation:

vekshin13 years ago
3 0

Answer:

To find the surface area of a cube, use the formula: surface area = 6s^2, where s is the length of one of the sides. If you don't know the length of the sides, you can find the surface area using volume. Just find the cube root of the volume, which is equal to the length of one side of the cube.

Step-by-step explanation:

so in this case:

SA= 6(3)^2

= 18^2

= 324

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PLEASE HELPPPPPP<br> The perimeter is 50 ft and the length is 15 ft.<br> What's the width?
SVEN [57.7K]

Answer:

10

Step-by-step explanation:

I assume it's a rectangle, therefore:

P = 50

a = 15 ft

b = ?

P = 2a + 2b

50 = 2 * 15 + 2b

50 = 30 + 2b

2b = 50 - 30

2b = 20

b = 10

8 0
3 years ago
Simply the expression 2(10)+2(x+4)
postnew [5]

Step-by-step explanation:

2(10)+2(x+4)

20 + 2x + 8

20 +8 +2x

28+2x

5 0
2 years ago
Read 2 more answers
An animal reserve has 40,000 elk. The population increases 11% a year. How long tell the population is equal to 80,000. If someo
sukhopar [10]

Answer:

7 years (This answer is to the nearest year)

Step-by-step explanation:

The way you could work this out is by trial and error. 11 % a year means that its population increases by 4400 annually. 40,000 X 1.11^1 gives you the amount it would be after one year (44000). I got the 1.11 because of the percentage (0.11) plus the amount you need to do percentage increase (1). Then all you do is keep on going up till you hit the number you need (80,000) after about 7 years the total would have hit 80,000 and would have actually went past it (83046)

8 0
3 years ago
What are the solution and the answer?
dedylja [7]

Answer:

I think its 40 if i did it right Ill show you how i did it

Step-by-step explanation:

First I added 12+12 and the is 24.

The I added 8+8 and that was 16.

Lastly I added 16+24= 40

7 0
2 years ago
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mafiozo [28]

Answer:

She bought 2 videos and 8 CDs.

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3 years ago
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