Kevin began his proof of the Pythagorean theorem by inscribing a square within a square so that the triangles. Suppose the outer square has an area of 196 cm², and the inner square has an area o cm, which of these is the length of a side of one of the other three triangles? Select two that apply. 4 cm B 8 cm 10 cm 16 cm​

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.