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3 years ago

I am a two dimensional shape that has more than two but less than 4 sides. what shape am i?

Mathematics

2 answers:

kodGreya [7K]3 years ago

8 0

It is a triangle. Because it only has 3 sides

Darina [25.2K]3 years ago

4 0

Triangle , because it has 3 sides.

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What is the difference?

Serhud [2]

Answer:

The option $\frac{(x+5)(x+2)}{x^3-9x}$ is correct

The difference of the given expression is

$\frac{2x+5}{x^2-3x}-(\frac{3x+5}{x^3-9x})-({\frac{x+1}{x^2-9})=\frac{(x+5)(x+2)}{x^3-9x}$

Step-by-step explanation:

Given expression is $\frac{2x+5}{x^2-3x}-(\frac{3x+5}{x^3-9x})-({\frac{x+1}{x^2-9})$

To find the difference of the given expression as below :

$\frac{2x+5}{x^2-3x}-(\frac{3x+5}{x^3-9x})-({\frac{x+1}{x^2-9})$

$=\frac{2x+5}{x(x-3)}-(\frac{3x+5}{x(x^2-9)})-({\frac{x+1}{x^2-9})$

$=\frac{2x+5}{x(x-3)}-(\frac{3x+5}{x(x^2-3^2)})-({\frac{x+1}{x^2-3^2})$

$=\frac{2x+5}{x(x-3)}-(\frac{3x+5}{x(x-3)(x+3)})-({\frac{x+1}{(x-3)(x+3)})$

( using the formula $a^2-b^2=(a+b)(a-b)$ )

$=\frac{2x+5(x+3)-(3x+5)-x(x+1)}{x(x-3)(x+3)}$

$=\frac{2x^2+6x+5x+15-3x-5-x^2-x}{x(x-3)(x+3)}$ (adding the like terms)

$=\frac{x^2+7x+10}{x(x^2-9)}$ ( by factoring the quadratic polynomial )

$=\frac{(x+5)(x+2)}{x^3-9x}$

Therefore $\frac{2x+5}{x^2-3x}-(\frac{3x+5}{x^3-9x})-({\frac{x+1}{x^2-9})=\frac{(x+5)(x+2)}{x^3-9x}$

Therefore the difference of the given expression is

$\frac{(x+5)(x+2)}{x^3-9x}$

Therefore option $\frac{(x+5)(x+2)}{x^3-9x}$ is correct

8 0

3 years ago

Find x Round your answer to the nearest integer. A. 7 B. 8 C. 6 D. 5

Ivenika [448]

Answer:

Explanations

in this case the hypotenuse is 10,x is the adjacent side of the angle 37

therefore you have to use cos

cos37=x/10

x=7.9

I hope this helps

3 0

3 years ago

Two angles are supplementary. One angle measures 90 degrees. What is the measurement of the other angle? A.90 B.10 C.100 D.0

Studentka2010 [4]

Answer:

it will have to be 90 degrees, because two angles that are supplementary add up to be 180 degrees so 90 + 90 is 180. hope this helps

Step-by-step explanation:

6 0

4 years ago

Consider the equation:

Ludmilka [50]

Answer:

x^2 - 6x - 55 = 0

using calculator apply mode 5 3 and write nmbrs

1 , -6 , -55

answers must be 11 and -5

4 0

4 years ago

What is the value of x? x/3-1=-3

Nookie1986 [14]

Answer:

-6

Step-by-step explanation:

x/3-1= -3

You subtract 3 from 1 to simplify

x/2= -3

Then you multiply 2 to each side

x= -6

8 0

3 years ago

Read 2 more answers