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3 years ago

If x+y = nx+2 then x equals

Mathematics

2 answers:

katrin2010 [14]3 years ago

8 0

Answer:

Hello,

Step-by-step explanation:

x+y=nx+2

x-nx=2-y

x(1-n)=2-y

if 1-n ≠0 (or n≠1) then

$x=\dfrac{2-y}{1-x}$

MaRussiya [10]3 years ago

5 0

Answer:

x+y = nx+2

⇔x-nx = 2-y

⇔x(1-n) = 2-y

⇔x = (2-y)/(1-n)

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2) (3 pt) Write the function from the table and graph.хf(x)-10004122130.52) f(x) =

DaniilM [7]

(x - h)^2 = 4p(y - k)

(-1 - 3)^2 = 4p(8 - 0.5)

(-4)^2 = 4p(7.5)

16 = 30p

p = 16/30

p = 8/15

(x - 3)^2 = 16/15(y - 0.5)

15(x^2 - 6x + 9) = 16y - 8

15x^2 - 90x + 135 = 16y - 8

16y = 15x^2 - 90x + 135 + 8

y = 15/16 x^2 - 90/16 x + 143/16

f(x) = 15/16 x^2 - 90/16x + 143/16

4 0

1 year ago

In the figure above, PQRS is a circle. If PQT and SRT are straight lines, find the value of x.

Elena L [17]

Given:

PQRS is a circle, PQT and SRT are straight lines.

To find:

The value of x.

Solution:

Since PQRS is a circle, PQT and SRT are straight lines, therefore, PQRS isa cyclic quadrilateral.

We know that, sum of opposite angles of a cyclic quadrilateral is 180 degrees.

$m\angle SPQ+m\angle QRS=180^\circ$

$81^\circ+m\angle QRS=180^\circ$

$m\angle QRS=180^\circ-81^\circ$

$m\angle QRS=99^\circ$

Now, SRT is a straight line.

$m\angle QRT+m\angle QRS=180^\circ$ (Linear pair)

$m\angle QRT+99^\circ=180^\circ$

$m\angle QRT=180^\circ-99^\circ$

$m\angle QRT=81^\circ$ ...(i)

According to the Exterior angle theorem, in a triangle the measure of an exterior angle is equal the sum of the opposite interior angles.

Using exterior angle theorem in triangle QRT, we get

$m\angle PQR=m\angle QRT+m\angle QTR$

$x=81^\circ+22^\circ$

$x=103^\circ$

Therefore, the value of x is 103 degrees.

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3 years ago

Kimuyen needs to earn $4,150 per month in order to pay all her expenses. Her job pays her $3,475 per month plus a commission of

ASHA 777 [7]

Answer:

Step-by-step explanation:

16,875

8 0

3 years ago

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Solve i give 28 point

SIZIF [17.4K]

the number is how many years

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3 years ago

Find the surface area! Thank you!!

Evgen [1.6K]

Answer:

$SA= 720 m^2$

Step-by-step explanation:

$x=\sqrt{5^2+12^2}=13m$

$AS=2*1/2*12+12*22+5*22+13*22$

$= 60+264+110+13*22$

$AS= 720m^2$

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hope it helps...

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6 0

3 years ago

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