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3 years ago

Is this right? I just need to make sure. :)

Mathematics

2 answers:

Goshia [24]3 years ago

8 0

Answer: B

Step-by-step explanation:

To solve this problem, we need to understand y-intercepts and slope.

Looking at the problem, we can automatically eliminate C and D. The graph has a negative slope because it is going down.

Now, let's look at the y-intercept. We see that the graph passes the y-axis at 1. Therefore, B is the correct answer.

Sav [38]3 years ago

7 0

Answer:

Yes, you are 100% correct! Good job!!!

Step-by-step explanation:

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Answer:

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Part 2) The total surface area of the paperweight is $400\ cm^{2}$

Step-by-step explanation:

Part 1) what is the volume of the paperweight?

we know that

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step 1

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The volume of the pyramid is equal to

$V=\frac{1}{3}BH$

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substitute

$V=\frac{1}{3}(64)(3)=64\ cm^{3}$

step 2

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step 3

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Part 2) what is the total surface area of the paperweight?

we know that

The total surface area of the paperweight is equal to the surface area of 5 faces of the cube plus the lateral area of the pyramid

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step 2

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step 3

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