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Novosadov [1.4K]
2 years ago
7

Please help asap I’m so lost

Mathematics
1 answer:
Simora [160]2 years ago
4 0
what are the other answers
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Using the following equation, find the center and radius of the circle. You must show all work and calculations to receive credi
Vikki [24]
The equation of the circle: (x-a)^2+(y-b)^2=r^2

where:
(a; b) - coordinates of the center
r - a radius

Use: (a\pm b)^2=a^2\pm2ab+b^2\ \ \ \ (*)

We have:

x^2-4x+y^2+8y=-4\\\\x^2-2x\cdot2+y^2+2y\cdot4=-4\ \ \ |add\ 2^2\ and\ 4^2\ to\ both\ sides\\\\\underbrace{x^2-2x\cdot2+2^2}_{(*)}+\underbrace{y^2+2y\cdot4+4^2}_{(*)}=-4+2^2+4^2\\\\(x-2)^2+(y+4)^2=-4+4+16\\\\(x+2)^2+(y-4)^2=16\\\\(x+2)^2+(y-4)^2=4^2

Answer:
The center: (-2; 4)
The radius: r = 4
7 0
3 years ago
Read 2 more answers
What’s the answer??!?
Len [333]

Answer:

See answers below.

Step-by-step explanation:

For formula to find the volume of rectangular prism is given below:

Volume\:=\:whl

11. Putting the given values, we have:

200=\left(2\frac{1}{2}\right)\left(h\right)\left(8\right)\\\\h=10

12.\:\:Volume=\left(8\frac{1}{2}\right)\left(4\right)\left(11\right)\\\\Volume = 374

5 0
3 years ago
Find the height of a cone with a diameter of 12 m whose volume is 226 m^3.
lozanna [386]
5m the answer because the height of the cone
4 0
3 years ago
Read 2 more answers
Please help me with this. will give brainliest due in 5 minutes
anyanavicka [17]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
lf the owner has $700 to spend on trees, how many can he purchase? Show or explain your work. Based on the table, what will be t
gavmur [86]

Answer: I need the table to be able to answer

5 0
3 years ago
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