An unknown radioactive element decays into non-radioactive substances. In 900 days the radioactivity o sample decreases by 49 percent . (a) What is the half-life of the element? half - : ( days) Round to two decimal places . How long will it take for a sample of 100 mg to decay to 51 mg

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

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d i think

step-by-step explanation:

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step-by-step explanation:

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