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pochemuha
3 years ago
12

HELP! WILL GIVE BRANLIEST!

Mathematics
1 answer:
Dominik [7]3 years ago
8 0

Answer:

35

Step-by-step explanation:

that is the answer

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Sophie sprays 200 fluid ounces of water on the window plants in her house every day. How much water does she spray each day?
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Find the standard form of the equation of the parabola with a focus at (0, 8) and a directrix at y = -8
Gekata [30.6K]
First, let (x,y) be a point in our parabola. Since we know that the focus of our parabola is  the point (0,8), we are going to use the distance formula to find the distance between the two points:
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Next, we are going to find the distance between the directrix and the point in our parabola. Remember that the distance between a point (x,y) of a parabola and its directrix, y=c, is: |y-c|. Since our directrix is y=-8, the distance to our point will be:
|y-(-8)|
|y+8|

Now, we are going to equate those two distances, and square them to get rid of the square root and the absolute value:
\sqrt{(x-0)^{2}+(y-8)^{2}}=|y+8|
(\sqrt{(x-0)^{2}+(y-8)^{2}})^{2}=|y+8|^{2}
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Finally, we can expand and solve for y:
x^2+y^2-16y+64=y^2+16y+64
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We can conclude that t<span>he standard form of the equation of the parabola with a focus at (0, 8) and a directrix at y = -8 is </span>y= \frac{1}{32} x^{2}

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3 years ago
1. 24% of 800<br> 75% of 1000
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Step-by-step explanation:

24% of 800 ➡ 800 ÷ 100 × 24 = 192

75% of 1000 ➡ 1000 ÷ 100 × 75 = 750

6 0
3 years ago
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