The exponential function P 200 x 0.83m gives the amount in parts per million of PCBS in a contaminated site m 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. P =200 x 3.32W P= 200 x 0.21W P =200 x 0.91W P =200 x 0.95W P =200 x 0.47W (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. P= 200 x 0.11 P= 200 x 0.07Y 200 x 4.98 P P = 200 x 0.98Y P = 200 x 9.96Y
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
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