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anonymous
 one year ago
Find the area of the circle in simplest polynomial form. A = 3.14r2
2x+1
a: 6.28x2 + 3.14
b: 12.56x2 + 3.14
c: 6.28x2 + 3.14x + 3.14
d: 12.56x2 + 12.56x + 3.14
anonymous
 one year ago
Find the area of the circle in simplest polynomial form. A = 3.14r2 2x+1 a: 6.28x2 + 3.14 b: 12.56x2 + 3.14 c: 6.28x2 + 3.14x + 3.14 d: 12.56x2 + 12.56x + 3.14

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Nurali
 one year ago
Best ResponseYou've already chosen the best response.1A = 3.14r^2 since r = 2x+1 A = 3.14(2x+1)^2 Now all you have to do is simplify this expression. A=3.14(2x+1)(2x+1) A=3.14(4x^2 + 2x + 2x + 1) A=3.14(4x^2 +4x+1) A=12.56x^2 + 12.56x + 3.14

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0Oh yes  i didn't understand the question at first you didnt say that r = 2x + 1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i don't know how to do that

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0Nurali has worked it out for you

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0you just say A = 3.14 r^2 when r = 2x + 1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i really don't understand how to do this stuff

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0its basic algebra you replace the r in 3.14 r^2 by 2x + 1 and simplify
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