The number of kilograms, y, of a radioactive element that remains that after t hours can be modeled by the equation y=0.23(0.91)t what is the rate of decrease of this radioactive element?

Step-by-step explanation:

Given that after hours,the number of kilograms of the radio active material is 0.23(0.91)t

rate of decrease of this radio active element=

represents the slope of the graph

Slope is ,which is the rate at which decreases with time.

for constant k

calculate =

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation:

step-by-step explanation:

the answer is 89 d

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