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

Answers

Answer 1

Answer:

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.

Answer 2

Answer: surface area of a cube=6*s^2=6*8^2=384

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Combine like terms. 14z – 27z

A. 41z
B. –13z2
C. 13
D. -13z

Answers

Hello,

14z - 27z = - 13z

Have a nice day

D. -13z is the correct answer...since both values have z the you can simply subtract 27 from 14. Hope this helps and, if you are able to do so, please mark Brainliest!

What is 2/3 in a percent

Answers

2/3 is equivalent to (66 and 2/3) percent.

OK so 2/3 is0.66666666666666666666666666 and that needs to be multiplied by 100 to vet percent so 2/3 is 66.6%

What is the value of the function when x = −1?

Is my answer right?

Answers

The answer would be negative 2

You could divide any rectangle into two right triangles. How is knowing this useful?

Answers

It makes it so that you can solve for the sides and such of a triangle using theorems specific to right triangles.

kimi is playing hide-and-seek with Tommy and Manuel. Tommy is hiding 12 feet south of Kimi, and Manuel is hiding due east of Tommy. If Kimi is 20 feet from Manuel, how far apart are Tommy and Manuel?

Answers

Answer:

Tommy and Manuel are 16 ft apart

Step-by-step explanation:

The locations of all three players are shown in the image below

They form a right triangle where the hypotenuse is 20 ft, and one of the legs is 12 ft. We must find the other leg.

We must use Pythagoras's theorem. Being a and b the legs of a right triangle and c its hypotenuse, then

$c^2=a^2+b^2$

Knowing c and one of the legs, say b:

$a^2=c^2-b^2$

Using the values c=20, b=12 we find

$a^2=20^2-12^2=400-144=256$

$a=√(256)=16$

So, Tommy and Manuel are 16 ft apart

Pythagorean Theorem: Jason only has room for a TV that is less than 30” wide. Can he fit the TV in his room?

Answers

Answer:

Step-by-step explanation:

Using the Pythagorean Theorem, make 40 = c, 24 = b and the remaining side (the width) = a.

Solving for a we get a = $√(c^2-b^2)$ . Then plugging in the values for c and b, we get a = $√(1024)$ = 32

Since the width of the TV needs to be less than 30" wide, it will not fit since the width of the TV is 32" wide.

Answer:

No, the tv is 32 inches wide.

Step-by-step explanation:

$a^(2) +b^(2) = c^(2) \n24^(2) +b^(2) =40^(2) \n40^(2) -24^(2) =b^(2) \n1600-576=b^(2) \n1024=b^(2) \n√(1024) =b\nb=32$

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