A 38 gram sample of a substance that's used to sterilize surgical instruments has a k-value of 0.113 N = Noe -kt No = initial mass (at time ‡= 0) N= mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time †= time, in days Find the substance's half-life, in days. Round your answer to the nearest tenth.

Is a positive integer raised to a negative power always positive

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.