A 25 gram sample of a substance that's used for drug research has a k-value of 0. 1208. N = Noe No = initial mass (at time t = 0) = mass at time t k - a positive constant that depends on the substance itself and on the units used to measure time t = time, in days. Fine the substances half life, in days, round your answer to the nearest tenth​

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

Acylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. what is the radius of the cone? a) 3 cm b) 5 cm c) 7 cm d) 9 cm

For each given situation, determine if the method of randomization is either appropriate or not appropriate