The time taken by an average swimmer to swim 100 meters, free style, at age x years is given by t(x) = 0.181x2 – 8.463x + 147.376 seconds. According to this model, which of the statements below is correct?

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

you can't solve x because it is 2 linear equation and you only have one equation

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.