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just olya [345]
3 years ago
5

F(x) = -2x^3 + 3(x + 2). Does this mean that it's f(3) = -39

Mathematics
1 answer:
Anarel [89]3 years ago
5 0

Answer:

Step-by-step explanation:

lets replace x with 3

f(3)= -2(3)^3+3(3+2)=-2*27+15=-54+15=-39

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3 years ago
The net of a square pyramid is shown below: Net of a square pyramid showing 4 triangles and the square base. The square base has
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Given:

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Square base: 2x2

1 out of 4 triangles: 1/2x2x5

4 triangles: 2x2x5

To find:

The SURFACE AREA of the square pyramid

Find answer:

Step 1

Find the area of the square base -

Square base:

SA = L x W

= 2 x 2

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<em>The surface area of the square is 4 square inches</em>

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Step 2

Find the area of the 4 Triangles:

We will use a different formula here, to find 1 triangle, we will have to do:

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To find 2 triangles, we will do:

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But to find 4 triangles in just 1 step, we will do:

SA=2*B*H

Let's do it!

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Step 3

Add answers to get FINAL ANSWER

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Answer:

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Answer:

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We are given that Kristine spends $20 and saves the rest each time she get paid.

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4 0
3 years ago
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