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Lesechka [4]
4 years ago
12

What is solution to equation X-5/7=-3/7

Mathematics
2 answers:
ad-work [718]4 years ago
8 0
X = 2/7
steps:
add 5/7 to both sides
dusya [7]4 years ago
7 0
The answer to the equation is x=2/7
This is because the equation requires you to add 5/7 to -3/7 which results in x equaling 2/7.
(Hope you have a nice day. Could you give me brainliest so I can level up? I only need one more)
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The midpoint of PQ is M(1, 4). One endpoint is P(2, 8). Find the coordinates of the other endpoint Q. Write the coordinates as d
Vladimir [108]

Answer:

Step-by-step explanation:

(x+2)/2 = 1

x + 2 = 2

x = 0

(y + 8)/2 = 4

y + 8 = 8

y = 0

(0, 0)

7 0
3 years ago
FILL IN THE BLANK
IgorLugansk [536]
Now, we know that he's charging $12 per session to each of his students, and he has 14 students currently, so his revenue is just 14 * 12 or 168 bucks.

now, let's take a peek as the session price goes up in jumps of 2, from 12, to 14, 16, 18 and so on, as each jumps happen, the students drop by 1, from 14, to 13, to 12 and so on.

\bf \begin{array}{ccccllll}
\stackrel{increase}{x}&\stackrel{new}{price}&students&\stackrel{revenue}{y}\\
------&------&------&------\\
0&12&14&168\\
1&14&13&182\\
2&16&12&192\\
3&18&11&198\\
\boxed{4}&20&10&\boxed{200}\\
5&22&9&198\\
6&24&8&192\\
7&26&7&182\\
8&28&6&168\\
..&..&..&..
\end{array}

notice, the revenue starts off at 168, goes up up, reaches 200 bucks and then starts to drop back down.

thus, that means the U-turn or vertex of that revenue function is at 4,200, namely h = 4, and k = 200

\bf \qquad \textit{parabola vertex form}\\\\
\begin{array}{llll}
\boxed{y=a(x-{{ h}})^2+{{ k}}}\\\\
x=a(y-{{ k}})^2+{{ h}}
\end{array} \qquad\qquad  vertex\ ({{ h}},{{ k}})\\\\
-------------------------------\\\\
\stackrel{c(x)}{y}=a(x-\stackrel{h}{4})\stackrel{k}{+200}
\\\\\\
\textit{now, we also know that }
\begin{cases}
x=2\\
y=192
\end{cases}\implies 192=a(2-4)^2+200
\\\\\\
-8=a(-2)^2\implies -8=4a\implies \cfrac{-8}{4}=a\implies -2=a
\\\\\\


\bf therefore\qquad \stackrel{ c(x)}{y}=-2(x-4)^2+200\impliedby \textit{let's expand that}
\\\\\\
y=-2(x^2-8x+16)+200\implies y=-2x^2+16x-32+200
\\\\\\
\stackrel{y}{c(x)}=-2x^2+16x+168
3 0
3 years ago
Read 2 more answers
Jonathan wants to buy a lid for his frying pan. The diameter of the pan is 11 inches. What is the approximate circumference of a
Leona [35]

the approximate circumference of a lid that will fit his frying is 34.5 inches .

<u>Step-by-step explanation:</u>

Here we have , Jonathan wants to buy a lid for his frying pan. The diameter of the pan is 11 inches. We need to find What is the approximate circumference of a lid that will fit his frying . Let's find out:

We know that  a lid for his frying pan is basically in shape of circle , So we consider a lid for his frying pan as a circle ! Now ,

Circumference of circle = 2\pi r , r = radius

⇒ Circumference =2\pi r

⇒ Circumference =2\pi \frac{D}{2}

⇒ Circumference =\pi D , D = Diameter = 11 inches

⇒ Circumference =\pi (11)

⇒ Circumference =(3.14) (11)

⇒ Circumference =34.5inches

Therefore , the approximate circumference of a lid that will fit his frying is 34.5 inches .

6 0
3 years ago
Read 2 more answers
PLEASE HELP, DUE SOON!!
xenn [34]
Wait, what’s the question type it in the comments here and I’ll answer!!
6 0
3 years ago
(-3,y), (-9,-2); m=1
12345 [234]

Answer:

The value of y is 4

The equation of line is y = x + 7   .

Step-by-step explanation:

Given as :

The points are

(x_1, y_1) = (- 3, y)

(x_2, y_2) = (- 9, -2)

The slope = m = 1

Now,<u> The slope is calculated in points form</u>

So, Slope = \dfrac{y_2-y_1}{x_2-x_1}

I.e m = \dfrac{y_2-y_1}{x_2-x_1}

or, 1 = \dfrac{- 2 - y}{- 9- (-3)}

or, 1 = \dfrac{- 2 - y}{- 6}

or, 1 × (-6) = - 2 - y

or, - 6 = - 2- y

or, y = - 2 + 6

∴ y = 4

So, The new points as

(x_1, y_1) = (- 3, 4 )

(x_2, y_2) = (- 9, -2)

<u>So, the equation of line in slope - point form can be written as</u>

y - y_1 = m ( x - x_1 )

i.e y - 4 = ( 1 ) × ( x - (-3) )

or, y - 4 = x + 3

∴ y = x + 3 + 4

Or, y = x + 7

So, The equation of line is y = x + 7

Hence The value of y is 4

And The equation of line is y = x + 7   . Answer

8 0
3 years ago
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