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3 years ago

Please help this is very important please

Mathematics

1 answer:

almond37 [142]3 years ago

6 0

Answer:

Well, I've got the first 3, but I don't think those were the ones you needed help with...

1) (3, 35), (4, 30), (5, 25)

2) (1, 27), (5, 32), (9, 37)

3) (24, 25), (17, 19) (-11, -5), (-18, -11)

Step-by-step explanation:

1) x+1, y-5

2) x+4, y+5

3) x-7, y-6

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densk [106]

I believe it is 128. I may be wrong but if there are 384 tickets sold and there were 2 times more student tickets sold than adult then there are 128 tickets lift over to be adult tickets

4 0

3 years ago

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The given line passes through the points (0, −3) and (2, 3).

Alex

Answer:

The equation would be y + 1 = 3(x + 1)

Step-by-step explanation:

In order to find the equation of this line, we have to use the slope formula to find the slope.

m (slope) = (y2 - y1)/(x2 - x1)

m = (3 - -3)/(2 - 0)

m = (3 + 3)/(2 - 0)

m = 6/2

m = 3

Now that we have that, we can use it along with the second point to put into the point-slope equation.

y - y1 = m(x - x1)

y - -1= 3(x - -1)

y + 1 = 3(x + 1)

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4 years ago

determine the quadratic function of f whose graph is given. The vertex is (1,-3) and the y-intercept is -2

LuckyWell [14K]

Hmmm the y-intercept is at -2? what does that mean? well, is where the graph "intercepts" or touches the y-axis, and when that happens, x = 0, so the point is really ( 0 , -2 ).

and we know where the vertex is at. Let's assume a vertical parabola, in which case the squared variable is the "x".

$\bf \qquad \textit{parabola vertex form}\\\\
\begin{array}{llll}
\boxed{y=a(x-{{ h}})^2+{{ k}}}\\\\
x=a(y-{{ k}})^2+{{ h}}
\end{array} \qquad\qquad vertex\ ({{ h}},{{ k}})\\\\
-------------------------------\\\\
vertex
\begin{cases}
h=1\\
k=-3
\end{cases}\implies y=a(x-1)^2-3
\\\\\\
\textit{now, we also know that }
\begin{cases}
x=0\\
y=-2
\end{cases}\implies -2=a(0-1)^2-3
\\\\\\
1=a(-1)^2\implies \boxed{1=a}\qquad thus\implies 
\begin{cases}
y=1(x-1)^2-3\\
\textit{or just}\\
y=(x-1)^2-3
\end{cases}$

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4 years ago

Points j, k, and L are collinear

tatuchka [14]

Answer:

n=4

JK=12

KL=13

Step-by-step explanation:

Since JL=25 and JL=3n+5n-7

Then

3n+5n-7=25 simplifying we get

8n-7=25 subtracting 7 from both sides

8n=32 dividing both sides by 8

n=4

JK?

JK=3n bt n=4

JK=3*4

JK=12

KL?

KL=5n-7

KL=5*4-7

KL=13

6 0

3 years ago

Read 2 more answers

Mongoose McHuffy has a bike shop. He only has bicycles and tricycles in stock. In total he has 21 items in stock with a total of

olasank [31]

Answer:

12 bikes

9 tricycles

Step-by-step explanation:

x+y=21

2x+3y=51

x=-y+21

2(-y+21)+3y=51

-2y+42+3y=51

y+42=51

y=9

x=12

5 0

3 years ago