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3 years ago

What is the surface area, in square inches, of a 8-inch cube?

Mathematics

2 answers:

Genrish500 [490]3 years ago

7 0

Answer: 384 in²

Step-by-step explanation: Surface area is the sum of the areas of all of the faces of a three-dimensional figure.

So to find the surface area of a cube, it's important to understand that each face of a cube has the same area. So we can simply find the area of one face of a cube and multiply it by the number of faces which is 6.

To find the area of one face of a cube, we can use the formula for the area of a square.

Area = S²

Since the length of a side is 8 inches, we have (8 in.)² or 8 inches x 8 inches which gives us 64 in.².

Now, since there are 6 sides to a cube, we have (64 in.)² (6) which is equal to 384 inches².

Therefore, the surface area of the cube is 384 in².

Nimfa-mama [501]3 years ago

6 0

Surface area of a cube=6*s^2=6*8^2=384

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d1i1m1o1n [39]

Answer:

Answers are below

Step-by-step explanation:

The baseball is 36 ft in the air after 1 second. The maximum height of the baseball of 69.8 ft.

To find these answers, I used the graph below.

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3 years ago

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4 lbs 7 oz; oz<br> conversions ratios thing

bogdanovich [222]

Answer:

4 lb 7 oz = 71 oz

Step-by-step explanation:

Do you need to convert 4 lb 7 oz into oz?

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Obviously, 7 oz is already in oz, so all you need to do is convert 4 lb into oz and then add 7 oz.

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3 years ago

Write an inequality that expresses the reason the lengths 5 feet, 10 feet, and 20 feet could not be used to make a triangle. Exp

Nadusha1986 [10]

Pythagoreon theorem
a^2+b^2=c^2
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3 years ago

Please Help with problems 7-10!!!!

Ahat [919]

Answer:

7) 3m + 21

8) 8t + 12

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Step-by-step explanation:

just use the distributive property

<em><u>Hope this helped! Have a nice day! Plz mark as brainliest!!!</u></em>

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2 years ago

Explain what the equation 110d = 100d + 40 represents<br>in the context of the example problem.

Tanya [424]

<em>This means that at some specific number of days the cost for Oceanview and Beachside will be the same.</em>

<h2 /><h2>Explanation:</h2>

See the complete question in the attached file. In this exercise, we know that Oceanview charges $100 per day plus a one-time fee of $40. This can be represented by the following equation:

Total cost for Oceanview:

$c=100d+40$

Total cost for Beachside:

$c=110d$

Where:

$c:Represents \ the \ cost \\ \\ d:Represents \ the \ number \ of \ day$

So we have to explain what the equation:

$110d=100d+40$

represents in the context of the problem. We have used substitution in order to get that equation, so <em>this means that at some specific number of days the cost for Oceanview and Beachside will be the same.</em>

This value was calculated and we get that<em> the cost at the hotels will be the same after 4 days and it will be $440.</em>

<h2>Learn more:</h2>

Linear equations: brainly.com/question/12412678

#LearnWithBrainly

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3 years ago