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user100 [1]
3 years ago
15

Explain why a two-dimensional net is useful for finding the surface area of a three-dimensional figure. Answer as soon as possib

le plz
Mathematics
1 answer:
Allushta [10]3 years ago
5 0
A two-dimensional net is useful because it flattens the 3-d figure so that you can see all the faces of the figure.  You can calculate the area of each face to find the surface area. 
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What is the value of n in the following equation?
Zanzabum

Answer:

A

Step-by-step explanation:

Given

n × 3 = 567 ÷ 27, that is

3n = 21 ( divide both sides by 3 )

n = 7 → A

8 0
3 years ago
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I will give BRAINLIEST PLS HELP y = x + 1/2 and z = 2x - 3, which of the following is equivalent to y + yz? PLS HELP
STALIN [3.7K]

Answer:

y+yz is: 2x^2-2x-1

Step-by-step explanation:

Given expressions are:

y = x+\frac{1}{2}\\z = 2x-3

The given expressions are polynomials and we have to find the value of y+yz

First of all, we will find the product of y and z

We will use the distribution to find the product.

yz = (x+\frac{1}{2})(2x-3)\\= x(2x-3)+\frac{1}{2}(2x-3)\\= 2x^2-3x+x-\frac{3}{2}\\=2x^2-2x- \frac{3}{2}

The next step is to add y and yz

y+yz = (x+\frac{1}{2})+(2x^2-3x-\frac{3}{2})\\Combining\ like\ terms\\= 2x^2+x-3x+\frac{1}{2} -\frac{3}{2}\\=2x^2-2x + \frac{1-3}{2}\\=2x^2-2x+\frac{-2}{2}\\=2x^2-2x-1

The answer is not one of the options which i assume might be a typing mistake.

Hence,

y+yz is: 2x^2-2x-1

6 0
3 years ago
-15) (-2)=
ivanzaharov [21]

Answer: sorry dont know

Step-by-step explanation:

4 0
3 years ago
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Fed [463]

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Step-by-step explanation:

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3 years ago
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Sedaia [141]

Answer:

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Step-by-step explanation:

just subtract the 1 inorder to isolate for y

7 0
4 years ago
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