4y + 7 - y + 2 Generate an equivalent expression

Step-by-step explanation:

Using the example 2x(3y + 2) will make it easier to walk through the process. Distribute the multiple 2x throughout the rest of the equation.

< 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⭐

10 - 75

step-by-step explanation:

there's nothing attached so it's most likely anything in that range.