Which selection contains the sets that best describe the following set of numbers: {-5, 0, 10, 15} Integers, Rational numbers, Real numbers
Rational numbers, Real numbers
Whole numbers, Rational numbers, Real numbers
Natural numbers, Rational numbers, Real numbers

< 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⭐

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation:

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.