3 years ago

Col

Mathematics

1 answer:

ch4aika [34]3 years ago

5 0

Answer:

40%

Step-by-step explanation:

i just looked at it

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21.78 divided by 1095.534

gladu [14]

Answer:

Hope this helps

Step-by-step explanation:

0.01988071

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3 years ago

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

BRAINLEIST ANSWER TO WHOEVER GIVES ME CORRECT ANSWER FIRST

ivann1987 [24]

Great, because y=2x+5 is 3xy kay.

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3 years ago

Use the graph to write a linear function that relates y to x

Alla [95]

81- answer is ok but im not suree

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