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2 years ago

Factorise this expression as fully as possible 2x^2+6x

Mathematics

1 answer:

AURORKA [14]2 years ago

3 0

Answer:

(Factor out 2x from the expression)

2x (x +3)

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3-4x^2=0 Solve for x

masha68 [24]

Answer: + or - (square root of 3)/2

Step-by-step explanation:

3-4x^2=0

Add 4x^2 on both sides

3-4x^2+4x^2=0+4x^2

3=4x^2

Divide both sides by 4

4x^2/4 = 3/4

x^2 = 3/4

Since it’s a square x can be a negative number or a positive number.

x = square root (3/4) = (square root of 3)/2

x = + or - (square root of 3)/2

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2 years ago

Graph the solution to y< = 1/5x+2

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Step-by-step explanation:

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2 years ago

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2 years ago

Which is the slope of the line that passes through the points (3,5) and (8,7)?

Hatshy [7]

Hi there!

»»————-　★　————-««

I believe your answer is:

$m=\boxed{\frac{2}{5}}$

»»————-　★　————-««

Here’s why:

The formula for the slope of two given lines given is 'rise over run'.

⸻⸻⸻⸻

$\boxed{\text{Slope Formula:}}\\\\\frac{y_2-y_1}{x_2-x_1}\\\\\rightarrow (x_1,y_1),(x_2,x_1) - \text{Two Points Given}$

⸻⸻⸻⸻

We are given the points (3,5) and (8,7).

⸻⸻⸻⸻

$\boxed{\text{Finding the Slope:}}\\\\\rightarrow m=\frac{7-5}{8-3}\\\\\rightarrow \boxed{m=\frac{2}{5}}$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

7 0

2 years ago