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2 years ago

Hhhhhhheeeellllpppp mmmmmeeeeee

Mathematics

1 answer:

lora16 [44]2 years ago

7 0

Hey there! I’m happy to help!

The surface area is basically the area of the surface of the shape. So, if you have a cube, it’s the area of all of the surface of the cube, not anything inside.

We see that we have a net of this square pyramid. If we fold it up, the square and four triangles will make up the surface of the 3D shape we see. So, we need to find the area of all of these shapes.

SQUARE
To find the area of a square, you multiply one of the sides by itself (all the sides are the same)

10(10)=100

TRIANGLES
To find the area of a triangle, you take the base and multiply the height and then divide it by two.

10(12)=120
120/2=60
Since we have four triangles, we multiply it by four.
60(4)=240

Finally, we add this all up.

240+100=340

Therefore, the answer is 340 square inches.

I hope that this helps! Have a wonderful day!

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Find the missing dimension of the prism. Round your answer to the nearest hundredth.

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Answer:

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Step-by-step explanation:

Given

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See attachment for prism

Required

Find x

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3 years ago

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Hi! They are- A,C,E, and F sorry if I’m wrong! Have a great day! :)

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2 years ago

Read 2 more answers

What was the error in this equation?

PtichkaEL [24]

Answer:

The error is the solution.

The solution is all real numbers, or infinite amount of solutions.

Step-by-step explanation:

Step 1: Write equation

-4(2n - 3) = 12 - 8n

Step 2: Solve for n

Distribute -4: -8n + 12 = 12 - 8n
Subtract 12 on both sides: -8n = -8n
Add 8n to both sides: 0 = 0

Here we see that n can equal any number. If you plug in any number n, it will render the equation true. Therefore, our solution is n = infinite amount of solutions.

n = 0 is only slightly correct. 0 does work as the solution, but there are solutions as well.

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2 years ago