Zenitsu

In triangle ABC, points D and E lie on BC and AC, respectively.

If AD and BE intersect at T so that AT/DT = 3 and BT/ET = 4, what is CD/BD?

hopes this helps lol

Let

f(x) = ax + 3 if x > 0

f(x) = ab if x = 0

f(x) = bx + c if x < 0

f(2) = 5

we plug that into the first one beacuse x is gerater than 0...

2a+3 = 5

2a = 2

a = 1

f(0) = 2

we plug this one into the second one beacuse x is equal to 0...

ab = 2

1b = 2

b = 2

f(-2) = 0

we plug this into the third one beacuse x is less than zero...

bx + c = 0

2x + c = 0

-4 + c = 0

c = 4 

since the problem is asking for a + b + c.....

a+ b + c = 1 + 2 + 4 = 7

a + b + c = 7

Same Question just different letters......

https://web2.0calc.com/questions/triangle-abc-is-a-right-triangle-with-right-angle-at-a.

First of we have the equation, 

6x + 4x - 6 = 24 + 9x

Grouping all the x's onto one side we get, 

6x + 4x - 9x = 24 + 6

10x -9x = 30

x = 30 

Checking our answer we get,

6(30) + 4(30) - 6 = 24 + 9(30)

180 + 120 - 6 = 24 + 270

300 - 6 = 294

294 =294        this means our answer is correct. 

Hope this was helpful 

The average of x + 6,6x + 2, and 2x is 4x-7. What is x?

In order to find the average of the numbers you have to add all of them and then divide by the amount of numbers you have to average. 

First,

[(x + 6) + (6x+2) + 2x ]/3 = 4x-7 

Getting rid of the denominator, by multiplying by 3 on both sides,

[(x + 6) + (6x+2) + 2x ] = 12x - 21

Grouping all the x's 

[(x + 6x + 2x) + 8] = 12x - 21

[9x+8] = 12x -21 

-3x = -29

x = 29/3

Hope I didin't make any silly mistakes lol. 

25?

I dont really understand your sentence

p.s plz use commas annd/or periods. 

Is this a test?

If so plz don't cheat. 

:)

Can you plz show the Question?

Maybe then I can answer it. 

Oh the first time I applied the function I got 20 instead of 30,

Thanks

Sorry I was thinking of the Formula for the graph of a circle. 

First we can start off by plugginng in the f(17)

In the function when you plug in a value greater than or equal to 7 you use the formula x + 13,

so your next function is f(f(30)),

you can do the same thing becasue 30 is greater than 7,

so your new function is f(43),

Then you can do this one last time becasue 33 is greater than 7,

and you are left with 56. 

f(f(f(17))) = 56

I agree

Anther way you can solve this is by completing the square...

then you can use the general formula ...

y = (x-h)^2 + (y-k)^2     where (h,k) is the vertex, 

Hi,

We have the question The equation 2x - 3/(x - 2) = 4- 3/(x - 2) has how many roots?,

first we can simplify the equation.,

2x-3/x-2 = 4x-11/x-2

if we cross multiply we get a quadratic equal to a quadratic..

So..

We can't have a degree higher than 2...

therefore there are 2 roots to the equation

p.s correct me if im wrong.

Would it be possible for you to put the equation

:)