The Percentage $p ( t )$ Of Children Who Are Able to Speak in at Least

question 81

Multiple Choice

The percentage $p ( t )$ of children who are able to speak in at least single words by the age of t months can be approximated by the equation.
$p ( t ) = 100 \left( 1 - \frac { 12,188 } { t ^ { 4.42 } } \right)$
By what age are 70% of children speaking in at least single words Round your answer to the nearest month.

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Definitions:

Bond Discount

The difference between the face value of a bond and the price for which it sells when the selling price is lower than its face value.

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A cash flow statement technique that starts with net income and adjusts for changes in balance sheet accounts to arrive at operating cash flow.

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The ongoing costs for running a business that are not directly tied to the production of goods or services, such as rent, utilities, and salaries.