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4 years ago

The surface area of a cube of side 'x' What is the equation?

Mathematics

1 answer:

Sunny_sXe [5.5K]4 years ago

6 0

The total surface area of the cube is $6x^2$

Step-by-step explanation:

Here we want to find an expression for the surface area of a cube if side x.

First of all, we notice that the cube consists of 6 equal faces; each face is a square, so the area of each face is the area of a square of side x, therefore:

$A_1 = x\cdot x = x^2$

Since we have 6 faces, the total surface area of the cube will be

$A=6A_1$

And therefore,

$A=6x^2$

So, this is the total surface area of the cube.

Learn more about area and volume of solids:

brainly.com/question/12497249

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Two Cars Start at the Same Point and travel in the Same Direction at the average speeds of 70 miles per hour, and 40 miles per h

cestrela7 [59]

Answer:

You can check it by solving it in your head. They are separating at the rate of 55-40 or 15 miles per hour. So in 1 hour or 60 minutes they'll be 15 miles apart, so in 20 minutes they'll be 5 miles apart, so in 40 minutes they'll be 10 miles apart. So it has to be 40 minutes.

Step-by-step explanation:

55t-40t=10

15t=10

15t/15=10/15

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3 years ago

How are the functions y=x and y=x-2 related? how are their graphs related?

Ne4ueva [31]

Both have the same slope 1 in front of X and parallel to each other.

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3 years ago

How to draw 2 pairs of parallel sides 2 pairs of sides equal in length and 2 acute and 2 obtuse angles. Tell all the possible na

Vlad1618 [11]

Rhombus (like a squished rectangle)

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I hope this helps!

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4 years ago

Use the rule to find the image of the vertices ABC is A (-2,4), B(5,3), C(1,-6) for the translation. (3 points)

yarga [219]

Answer:

A'(-5, 6), B'(2, 5), C'(-2, -4). The image is 3 units left and 2 units up from the original.

Step-by-step explanation:

Substitute x and y into the rule to find the image coordinates.

... A: (-2-3, 4+2) = A'(-5, 6)

... B: (5-3, 3+2) = B'(2, 5)

... C: (1-3, -6+2) = C'(-2, -4)

The translation x⇒ x-3 means the point is moved 3 units to the left (in the -x direction).