V A biologist has a 568-gram sample of a radioactive substance. Find the mass of the sample after four hours if it decreases according to a continuous exponential decay model, at a relative rate of 18% per hour. Do not round any intermediate computations, and round your answer to the nearest tenth. grams X S

Q: (b) Let A be a 2 x 2 matrix and a be a real number. Prove that det (a A)=a2² det(A)

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A: A laboratory designed a radio telescope that had a diameter of 300 ft and maximum depth of 44 ft.…

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