How long will it take a sample of radioactive substance to decay to half of its original amount, if it decays according to the function A(t) = 400e -.169t, where t is the time in years? Round your answer to the nearest hundredth year.

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5

Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³