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Ksju [112]
2 years ago
14

Please help !! i’m not quite getting what the equation can possibly be ? thank u !

Mathematics
1 answer:
Reika [66]2 years ago
4 0
I think the answer is y=1/4x+2 :)
You might be interested in
What is the value of x in the equation 2x + 1/2x + 2(1+x) = 29?
erica [24]

Answer:

<h2>x = 6</h2>

Step-by-step explanation:

2x  +  \frac{1}{2} x + 2(1 + x) = 29

Multiply through by 2

That's

4x + x + 4(1 + x) = 58

<u>Expand</u>

That's

5x + 4 + 4x = 58

9x = 58 - 4

9x = 54

Divide both sides by 9

That's

\frac{9x}{9}  =  \frac{54}{9}

We have the final answer as

<h3>x = 6</h3>

Hope this helps you

5 0
2 years ago
What is the value of the function at x=-2​
disa [49]

Answer: i think the correct answer is a

Step-by-step explanation: so if x=-2 then that would mean y=-4 because 2 and 4 r equivalent so it has to be a

3 0
2 years ago
Two numbers have an average of 18, and a difference of 10. Form two equations and solve them to find these
Troyanec [42]
Answer: x = 23 and y = 13

Explanation:

let x and y be the two number.

Where:

(x + y)/2 = 18 => x + y = 18 x 2 = 36

and:

x - y = 10

Thus we get:

x + y = 36 (1)
x - y = 10 (2)

Add (1) and (2):
x + y + x - y = 36 + 10
2x = 46
x = 23

If x = 23

then x - y = 10
23 - y = 10
-y = -13
y = 13
7 0
2 years ago
You go bowling and it costs 20 dollars plus 5 dollars per person (p). Which expression represents the total cost?
mars1129 [50]

Answer:

20+?P

Step-by-step explanation:

You would have 20 there bc you have 20 dollars originally charged then depending on the number of people going its 5 dollars a person so it would be 20 + "number of people here" P

Hope this helps,

Can i get a brainlist or like :)

Thanks

4 0
3 years ago
Read 2 more answers
Please help i don't understand!
meriva

Step-by-step explanation:

you did not tell us what we need to create or find or calculate.

I guess from the picture this is one of the new methods to factoring equations. typically where the method is often more complicated than just thinking logically and doing it.

let's see if I can figure that one out.

but first, the basic, normal approach.

factoring the equation means that find in this case (as it is a quadratic equation) 2 terms in x in the form

(ax + b)(cx + d) = 10x² - x - 2

with a, b, c, d being integer values.

after doing the multiplications we get

acx² + bcx + adx + bd = 10x² - x - 2

acx² + (bc + ad)x + bd = 10x² - x - 2

we see

ac = 10

bc + ad = -1

bd = -2

10 can be factored as

10×1

-10×-1

5×2

-5×-2

-2 can be factored as

-1×2

1×-2

so, get -1 for the middle one, I am trying to get -5 + 4. and that is possible by saying

b = -1

c = 5

d = 2

a = 2

to check

ac = 2×5 = 10

bc + ad = -1×5 + 2×2 = -5 + 4 = -1

bd = -1×2 = -2

that works perfectly.

so the factoring is

(2x - 1)(5x + 2) = 10x - x - 2

now to the box method :

the general quadratic equation is

ax² + bx + c

that means for us

a = 10

b = -1

c = -2

the box square starts with

-2

10x²

now we find 2 numbers that multiply across to a×c = -20 and add together to b = -1

n×m = -20

n+m = -1

n = -1 - m

and that we use in the first equation

(-1 - m)×m = -20

-m² - m + 20 = 0

m² + m - 20 = 0

using the general solution for such quadratic equations

m = (-1 ± sqrt(1² - 4×1×-20))/(2×1) = (-1 ± sqrt(81))/2 =

= (-1 ± 9)/2

m1 = (-1 + 9)/2 = 8/2 = 4

m2 = (-1 - 9)/2 = -10/2 = -5

as we see (n×m = -20) m1 = n2 and m2 = n1

so, the 2 numbers (sequence irrelevant) are -5, 4.

they represent -5x and 4x. the negative one goes in the upper enough box.

-5x -2

10x² 4x

now we create a column to the left of the box table, and a row below the box table.

the left column gets the greatest common factor of the line elements.

the greatest common factor of -5x and -2 is -1.

the greatest common factor of 10x² and 4x is 2x.

-1 -5x -2

2x 10x² 4x

the bottom row divides the last row by the left column element

10x² / 2x = 5x

4x / 2x = 2

-1 -5x -2

2x 10x² 4x

5x 2

and the factorization is then the left column and the bottom row :

(2x - 1)(5x + 2)

now anybody tell me this is not much more complicated than the direct method.

this is only advisable, if the direct method has too many options to try and combine.

I hope I found the right thing your teacher wants here.

8 0
1 year ago
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