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Mathematics 7 Online
OpenStudy (anonymous):

Which equation best represents the circle in the graph? (x + 3)2 + (y + 2)2 = 16 (x – 3)2 + (y - 2)2 = 16 (x – 3)2 + (y + 2)2 = 16 (x + 3)2 + (y - 2)2 = 1

OpenStudy (anonymous):

OpenStudy (anonymous):

SOMEONE PLEASE HELP ME ! I NEED SO MUCH HELP WHEN IT COMES TO MATH

OpenStudy (ghazi):

it's A since in A radius is = square root of 16 = 4 and center of the circle = 3,-2

OpenStudy (anonymous):

are you sure ?

OpenStudy (anonymous):

can you help with this one too ? How many inches of wood will the saw cut through in 1 complete revolution? 18.84 inches 9.42 inches 37.68 inches 28.26 inches

OpenStudy (anonymous):

OpenStudy (anonymous):

are you there ghazi?

OpenStudy (ghazi):

saw will cover the perimeter which is equal to =2*3.14* radius of saw (three inches ) now you can calculate just multiply it

OpenStudy (ghazi):

and i am sure about the first one

OpenStudy (anonymous):

so whats the radius?

OpenStudy (anonymous):

is it 18.84?

OpenStudy (ghazi):

yes...

OpenStudy (anonymous):

thank you!

OpenStudy (ghazi):

anytime

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