Given the following equation of an exponential function r = 10.5(0.535) determine the decay rate. a. 0.535% b. 10.5% c. 50% d. 46.5%

Correct choice is D

Step-by-step explanation:

Consider the exponential function

The exponential function of exponential decay can be written as

where r is the decay rate.

Note that 1-0.535=0.465. The decimal 0.465 is 46.5% and this percent represents the rate of exponential decay.

< 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

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