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PLEASE HELP ONLY 4 QUESTIONS!! WILL GET BRAINIEST!!

7.Find the radius of a circular lid with an area of 12in.².


8. Solve by completing the square: A rectangular patio has a length of x + 6 m, a width of x + 8 m, and a total area of 400 m². Find the dimensions to the nearest tenth.


9. Solve the system of equations.
{ = ² + 9
{ = 6

10. Solve the system of equations.
{ = 4 +8
{² + 7 − 20

Respuesta :

boiscutie
ok 
7.12^2 = 24in^2
8.put 400 for each x and see what is close to the nearest tenth
9.u reverse it 6-9=? then square root ?
and 10. u do the same as nine and 1 more number to subtract

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