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1 year ago

PLEASE HELP!!!!!

Mathematics

1 answer:

kirza4 [7]1 year ago

3 0

Answer:

Surface area = 96 m^2

Step-by-step explanation:

Let's cube root the volume to find the length of one side of the cube.

$64^\frac{1}{3} = 4$

Therefore each side is 4 m.

Surface area of one side = 4x4 = 16

A cube has 6 sides.

Total surface area of the cube = 16*6 = 96 m^2

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PLEASE HELP!!! ill give you brainlest:)) TPWK!!!

docker41 [41]

Answer:

82m²

Step-by-step explanation:

split it into a rectangle and square

3x6=18

8x8=64

total area = 82

4 0

1 year ago

Read 2 more answers

The average density of the material in intergalactic space is approximately 2.5 × 10–27 kg/m3. what is the volume of a lead samp

Lesechka [4]

Answer:

e. $1.8\times 10^{-6}m^3$

Step-by-step explanation:

It is given that,

The density of intergalactic space material is $2.5 \times 10^{-27}$ kg per cubic meter.

And the volume of intergalactic space material is $8.0\times 10^{24} m^3$

So the mass of that much intergalactic space material is,

$m= \rho\times v$ , where 'm' is the mass, and 'v' is the volume.

Putting the values we get,

$m=2.5 \times 10^{-27}\times 8.0 \times 10^{24}$

$m=20\times 10^{(-27+24)}=20\times 10^{-3} kg$

It is also given that the mass of lead is the same as the mass of the intergalactic space material. Therefore, the mass of lead is $20 \times 10^{-3}=2 \times 10^{-2}kg$

So the volume of lead is,

$v=\frac{m}{\rho} =\frac{2 \times 10^{-2}}{11300} = 0.00000177 m^3$

$v=1.77 \times 10^{-6}=1.8\times 10^{-6}m^3$

So the volume of lead is $v=1.8\times 10^{-6}m^3$ .

3 0

2 years ago

What is the answer to <br> -6x+4(-2+8y)- 2y+ 4

soldi70 [24.7K]

Answer:

− 6 + 3 0 − 4

4 0

2 years ago

Read 2 more answers

Is -6, -38 a solution to y= 7x+4

Sunny_sXe [5.5K]

Answer:

Yes, (-6,-38) is a coordinate pair off the equation

Step-by-step explanation:

Plug y=7x+4 into your graphic caculator

press 2ND, GRAPH and scroll up to see the point.

4 0

2 years ago

Asha and Lucy are selling pencils in a school shop.

Akimi4 [234]

Step-by-step explanation:

7x+22=2(5x+2)

7x+22=10x+4 (-7x)

3x+4=22 (-4)

3X=18 (divide by 3)

X=6 pencils

check if the number is correct

asha= 7*6=42 42+22 is 64

Lucy= 5*6=30 30+2 is 3264/32 is 2

asha= 7*6=42 42+22 is 64Lucy= 5*6=30 30+2 is 3264/32 is 2there fore asha sells twice as many as Lucy

8 0

2 years ago