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MaRussiya [10]
2 years ago
7

Find the center and radius of x2+2x+y2+10y=15

Mathematics
1 answer:
pogonyaev2 years ago
7 0

Answer: (x + 7)^2 + (y + 5)^ =9

Step-by-step explanation:

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Simplify −4√−48<br> Help , please ?
Talja [164]
The answer is -16 radical 3
4 0
3 years ago
I need help this assignments due at 9 eastern time plzzzz
fomenos
The answer is 2x^2+2x-14. Using the distributive property, you can find that the area of the pool is x^2+3x+2. Next, you have to find the area of the deck. This will be 3x^2+5x-12. Finally, you subtract the area of the deck by the area of the pool. (3x^2+5x-12)-(x^2+3x+2) comes out to be 2x^2+2x-14. Hope this helps!!
6 0
3 years ago
Esther uses 6.6 pints of blue paint and white paint to paint her bedroom walls. 3 5 of this amount is blue paint, and the rest i
OverLord2011 [107]

Answer:

2 16/25 or 2.64 pints.

Step-by-step explanation:

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5 0
3 years ago
Find the magnitude and direction (in degrees) of the vector. (Assume 0° ≤ &lt; 360°.)
ddd [48]

6i~~ + ~~2\sqrt{3}j\implies < \stackrel{a}{6}~~,~~\stackrel{b}{2\sqrt{3}} > \\\\[-0.35em] ~\dotfill\\\\ \stackrel{magnitude}{\sqrt{a^2+b^2}}\implies \sqrt{6^2+(2\sqrt{3})^2}\implies \sqrt{36+(2^2\cdot 3)}\implies \sqrt{36+12}\implies \sqrt{48} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{direction}{tan^{-1}\left( \cfrac{b}{a}\right)}\implies tan^{-1}\left( \cfrac{2\sqrt{3}}{6} \right)\implies tan^{-1}\left( \cfrac{\sqrt{3}}{3} \right) \\\\\\ tan^{-1}\left( \cfrac{1}{\sqrt{3}} \right)\implies 30^o

3 0
2 years ago
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Alex Ar [27]

Answer:

x = ± \sqrt{20}

Step-by-step explanation:

Given

x² = 20 ( take the square root of both sides )

x = ± \sqrt{20}

which can be simplified to

x = ± 2\sqrt{5}

[ ± means plus or minus ]

5 0
3 years ago
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