Quiz
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TIME REMAINING
54:50
Line segment BA is tangent to the circle.
What is the length of line segment BA? Round to the nearest
unit
255.0
18 units
65 units
88 units
98 units

Divide. write in the simplest form. 4 1/6 divided by 10

Can some one me with these questions

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.