Which of the following are true statements about the expression 5^12?
check all that apply.
a. 5 is the base
b. 5 is the exponent and tells us how many times we should multiply 12 by itself.
c. 12 is the base.
d. 12 is the exponent and tells us how many times we should multiply 5 by itself

A. 5 is the base

D. 12 is the exponent and tells us how many times we should multiply 5 by itself

Step-by-step explanation:

The given expression is

This is a number written in an index notation.

The base is 5.

The exponent is 12.

The exponent tells us how many times the base multiplies itself.

Therefore means, 5 multiplies itself 12 times.

Options A and D are 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⭐