All categories

3 years ago

Please help me i will give brainliest:/

Mathematics

2 answers:

kipiarov [429]3 years ago

7 0

Answer:

Step-by-step explanation:

masha68 [24]3 years ago

4 0

Answer:

i think its b tell me if im wrong!

You might be interested in

Show that every triangle formed by the coordinate axes and a tangent line to y = 1/x ( for x > 0)

vfiekz [6]

Answer:

Step-by-step explanation:

given a point $(x_0,y_0)$ the equation of a line with slope m that passes through the given point is

$y-y_0 = m(x-x_0)$ or equivalently

$y = mx+(y_0-mx_0)$ .

Recall that a line of the form $y=mx+b$ , the y intercept is b and the x intercept is $\frac{-b}{m}$ .

So, in our case, the y intercept is $(y_0-mx_0)$ and the x intercept is $\frac{mx_0-y_0}{m}$ .

In our case, we know that the line is tangent to the graph of 1/x. So consider a point over the graph $(x_0,\frac{1}{x_0})$ . Which means that $y_0=\frac{1}{x_0}$

The slope of the tangent line is given by the derivative of the function evaluated at $x_0$ . Using the properties of derivatives, we get

$y' = \frac{-1}{x^2}$ . So evaluated at $x_0$ we get $m = \frac{-1}{x_0^2}$

Replacing the values in our previous findings we get that the y intercept is

$(y_0-mx_0) = (\frac{1}{x_0}-(\frac{-1}{x_0^2}x_0)) = \frac{2}{x_0}$

The x intercept is

$\frac{mx_0-y_0}{m} = \frac{\frac{-1}{x_0^2}x_0-\frac{1}{x_0}}{\frac{-1}{x_0^2}} = 2x_0$

The triangle in consideration has height $\frac{2}{x_0}$ and base $2x_0$ . So the area is

$\frac{1}{2}\frac{2}{x_0}\cdot 2x_0=2$

So regardless of the point we take on the graph, the area of the triangle is always 2.

6 0

3 years ago

Help plz i give brainliest

Natasha_Volkova [10]

Answer: Hope this helps :)

$\frac{1}{5} b^{27}$

<h2><u><em>Mark me as Brainliest please</em></u></h2>

6 0

2 years ago

Read 2 more answers

I need help I’ll give u brainliest but i need an explanation or I can’t give it

slamgirl [31]

Answer:

the answer is a

Step-by-step explanation:

6 0

3 years ago

Find the missing angle ?

irakobra [83]

Answer:

Step-by-step explanation:

because there are vertical angles

8 0

3 years ago

Read 2 more answers

In triangle ACD, what is the value of X:<br> who ever show works gets brainly.

Keith_Richards [23]

Answer:

x = 7.5

Step-by-step explanation:

Given that BE is parallel to CD and intersects the 2 other sides, then it divides the 2 sides in proportion, that is

$\frac{AB}{BC}$ = $\frac{AE}{ED}$ , substitute values

$\frac{x}{6}$ = $\frac{10}{8}$ ( cross- multiply )

8x = 60 ( divide both sides by 8 )

x = 7.5

6 0

3 years ago