If the Pollution of Lake Erie Were Stopped Suddenly, It

question 140

Multiple Choice

If the pollution of Lake Erie were stopped suddenly, it has been estimated that the level y of pollutants would decrease according to the formula y = y _o e ^-0.3937t , where t is the time in years and y _o is the pollutant level at which further pollution ceased. How many years would it take to clear 59% of the pollutants?

• A)t = 0.58 years
• B)t = 1.34 years
• C)t = 2.02 years
• D)t = 0.98 years
• E)t = 2.26 years

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Definitions:

Discount on Bonds Payable

The discrepancy between a bond's nominal value and its market price when the bond is sold below its nominal value.

Journal Entry

A record of a financial transaction in an accounting system, consisting of debits and credits to maintain the double-entry accounting.

Discount on Bonds Payable

The gap between the nominal value of a bond and the price it is sold at when this price is lower than the bond's nominal value.

Redeems

The act of repaying or buying back something, such as a company repurchasing its own shares or a bond issuer paying back the principal at maturity.