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Alisiya [41]
2 years ago
7

PLEASE HELP I WILL GIVE BRAINLIEST

Mathematics
1 answer:
yan [13]2 years ago
6 0

Answer: part A its -1/9 and for part B its -1/18 trust me i did the test it was hard but I got an 80 and I got part A and B right

Step-by-step explanation:

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Anyone can help me out on this? :)
Charra [1.4K]

Answer:

the answer is c, science CANNOT answer all questions

6 0
3 years ago
Which equation represents the equation of the parabola with focus (-3 3) and directrix y=7?
Artemon [7]

Answer:

The equation y=\frac{-x^2-6x+31}{8} represents the equation of the parabola with focus (-3, 3) and directrix y = 7.

Step-by-step explanation:

To find the equation of the parabola with focus (-3, 3) and directrix y = 7. We start by assuming a general point on the parabola (x, y).

Using the distance formula d = \sqrt {\left( {x_1 - x_2 } \right)^2 + \left( {y_1 - y_2 } \right)^2 }, we find that the distance between (x, y) is

\sqrt{(x+3)^2+(y-3)^2}

and the distance between (x, y) and the directrix y = 7 is

\sqrt{(y-7)^2}.

On the parabola, these distances are equal so, we solve for y:

\sqrt{(x+3)^2+(y-3)^2}=\sqrt{(y-7)^2}\\\\\left(\sqrt{\left(x+3\right)^2+\left(y-3\right)^2}\right)^2=\left(\sqrt{\left(y-7\right)^2}\right)^2\\\\x^2+6x+y^2+18-6y=\left(y-7\right)^2\\\\x^2+6x+y^2+18-6y=y^2-14y+49\\\\y=\frac{-x^2-6x+31}{8}

6 0
3 years ago
In a transformation each point in the object is mapped to another point in the image. The following are the four types of transf
harina [27]
The answer to your question is true
6 0
2 years ago
PLZ HELP I GIVE BRAINLIEST...<br><br> 2-(-4)=?<br> -5-(10)=?
disa [49]

2 -(-4) = 2 + 4 = 6

-5-(10) = -5 - 10 = -15

I hope it helps you

5 0
3 years ago
Read 2 more answers
Please help me!!! i hate math well most of it any way lol.
Alja [10]

Answer:

y= 2x

Y = total earned. X= the number of cups sold.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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