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Tanzania [10]
3 years ago
11

A cube has volume 15 625 cm3. what is the surface area of the cube?

Mathematics
1 answer:
bulgar [2K]3 years ago
5 0
<span>SA=3750c<span>m<span>2
</span></span></span>

The volume of a cube is determined by the formula
<span>V=<span>s3</span></span> where s is the measurement of each edge.

Since cube has six square faces, each of the faces will have the area of a square which we know to be <span>A=<span>s2</span></span>. Therefore the total surface area of a cube will be the area of a square multiplied by six (faces).

<span>SA=6<span>s2</span></span>

Solving for the length of edge (side):

<span>V=<span>s3</span></span>

<span>s=<span>3<span>√V</span></span>=<span>3<span>√<span>15625c<span>m3</span></span></span></span></span>

<span>s=25cm</span>

Solving for the surface area:

<span>SA=6<span>s2</span>=6<span><span>(25cm)</span>2</span></span>

<span>SA=3750c<span>m<span>2</span></span></span>
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The nth term of a sequence is 3n + 2
gavmur [86]

Answer:

see explanation

Step-by-step explanation:

To calculate the first 3 terms substitute n = 1, 2, 3 into the n th term rule

a_{1} = (3 × 1) + 2 = 3 + 2 = 5

a_{2} = (3 × 2) + 2 = 6 + 2 = 8

a_{3} = (3 × 3) + 2 = 9 + 2 = 11

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substitute n = 10 into the n th term rule

a_{10} = (3 × 10) + 2 = 30 + 2 = 32

3 0
3 years ago
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Wich is greater 5 divided by 6 or 1 divided by 6 and how did you figure it out?
marysya [2.9K]

Answer:

The answer for this question is 5 divided 6 is greater.

Step-by-step explanation:

because 5 divided 6 is equal to 0.83

and 6 divided by 1 equals to 6

SO the answer is going to be 0.83 which is 5 divided by 6.

GOOD LUCK HOPE YOU GET IT RIGHT


6 0
2 years ago
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If the perimeter of a circular ground is 308 M find its radius​
crimeas [40]

Answer:

Correct option is

A

49m

The circumference of a circular field is 308m

Therefore, 2πr=308

⇒r=

2×22

308×7

⇒r=49m

Step-by-step explanation:

here you go

3 0
2 years ago
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Combine like terms to create an equivalent expression. -1/2(-3y+10)
andrew-mc [135]

Answer:

3/2y -5

Step-by-step explanation:

-1/2 (-3y+10)

Distribute

-1/2* -3y + -1/2*10

3/2y -5

5 0
3 years ago
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What are the real and imaginary parts of the complex number?
Licemer1 [7]

Answer:

The real part is 2

The imaginary part is -5

Step-by-step explanation:

A complex number consists of a real part and an imaginary part. For example given the complex number z = x+it

x is the real part of the complex number z i.e Re(z) = x

Imaginary part of the complex number z is y i.e Im(z) = y.

Note that the real part are on the x axis of a graph while the y axis is the imaginary axis attached to the complex notation i

Given the complex number 2-5i

Comparing 2-5i to x+iy

x= 2 and y = -5

The real part is 2 (value that is not attached to the complex notation)

The imaginary part is 5(value attached to the complex notation)

8 0
3 years ago
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