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3 years ago

I need help!! Please hurry

Mathematics

1 answer:

saul85 [17]3 years ago

8 0

y-int: -2

Slope: 3

remember: y = mx+b

m = slope

b = y-intercept

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ADHE - ADGF below. Find the value of 'x'. X H н E 8 2. 12

Vlad1618 [11]

Given:

$\Delta DHE\sim \Delta DGF$

To find:

The value of x.

Solution:

We know that, corresponding sides of similar triangles are proportional.

Since, $\Delta DHE\sim \Delta DGF$ , therefore

$\dfrac{HE}{GF}=\dfrac{DE}{DF}$

On substituting the values from the figure, we get

$\dfrac{8}{12}=\dfrac{x}{x+2}$

$\dfrac{2}{3}=\dfrac{x}{x+2}$

On cross multiplication, we get

$2(x+2)=3x$

$2x+4=3x$

$4=3x-2x$

$4=x$

Therefore, the value of x is 4.

8 0

3 years ago

Hi, can someone please help, and possibly explain the answer please.

mr_godi [17]

Answer:

$x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}$

Step-by-step explanation:

Quadratic formula: $x=\frac{-b\±\sqrt{b^2-4ac} }{2a}$ when the equation is $0=ax^2+bx+c$

The given equation is $1=-2x+3x^2+1$ . Let's first arrange this so its format looks like $y=ax^2+bx+c$ :

$1=-2x+3x^2+1$

$1=3x^2-2x+1$

Subtract 1 from both sides of the equation

$1-1=3x^2-2x+1-1\\0=3x^2-2x+0$

Now, we can easily identify 3 as a, -2 as b and 0 as c. Plug these into the quadratic formula:

$x=\frac{-b\±\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}$

I hope this helps!

8 0

3 years ago

Someone who can do this help me please.

lianna [129]

Answer:

x= 2

Step-by-step explanation:

the shapes are 6 in apart

5 0

4 years ago

What is equivalent to 4x-2=38

Tom [10]

2x4 is the answer to 4x-2=38

7 0

3 years ago

Please help with my IXL, thanks!

3241004551 [841]

Answer:

48%

Step-by-step explanation:

in my maths quiz I got it so

3 0

2 years ago

Read 2 more answers