The mass, m,of a lorry is 7.66 tonnes rounded to 2dp. write the error interval for m in the form a<m<b plz answer fast Its urgent

Select the sequences that are geometric.

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32