The exponential function P = 400 x 0.89 gives the amount in parts per million of PCBs in a contaminated sitem months after a cleanup process begins. (a) What is the weekly decay factor? Assume there are four weeks in each month. (Round your answer to two decimal places.) Find a formula that gives the amount P in parts per million w weeks after cleanup begins. OP = 400 x 3.56" OP= 400 x 0.94" P= 400 x 0.22 P = 400 x 0.63" O P = 400 x 0.97" (b) What is the yearly decay factor? (Round your answer to two decimal places.) Find a formula that gives the amount P in parts per million y years after cleanup begins. OP= 400 x 0.99 OP 400 x 0.25 OP 400 x 5.34 OP= 400 × 0.07% OP= 400 x 10.68

Q: A. _1. y = 4*1 _2. y = 4*1 _3. y = 4% – 1 _4. y = -4* + 1 E. 5. y = 4*+1+ 1 D.

A: We find graph corresponding to first three exponential functions. 1. y=4^(x-1)  2. y=4^(x+1)  3.…

Q: The equation for the half life of carbon 14 is a(1/2)t/5730 . Rewrite this equation with a base of…

A: To Rewrite this equation with a base of e.

Q: The half life of radon in 4 days . From a sample of 450g determine an equation that can be used to…

A: The half life is the time period in which the half of the initial quantity of substance is consumed…

Q: The half-life of Carbon-13 is 5750 years. Samples taken at an excavation site show that a one…

A:

Q: The width w (in millimeters) of successive growth spirals of the sea shell Catapulus voluto, shown…

A: We need to find the width of third spiral.

Q: A wooden artifact from an ancient tomb contains 20 percent of the carbon-14 that is present in…

A:

Q: A sample of radioactive material decayed to half of its original amount in 4 years. How long did it…

A: Given: A sample of radioactive material decayed to half of its original amount in 4 years To…

Q: Molybdenum-99 is a radioactive element used in medicine (for example when performing a brain scan).…

A: Law of Decay where A is the amount after time t  is the initial amount k is the constant t is the…

Q: Find an equation for an exponential function that passes through the pair of points given. (Round…

A: Exponential equation that pair passes through (2, 36) and (4, 324) points

Q: A nkcschools.instructure.com The formula for an exponential function is y = 639 × 0.62' The decay…

A: Given y=639×(0.62)t In general, if y=C(S)t is given, then here S represents the decay factor.

Q: x/16 = 4/3

A:

Q: The half-life of iron-52 is approximately 8.3 hours. Step 3 of 3: How much of a 13 gram sample of…

A: