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Algebra
Pregunta

9. LEARNING Ms. Klemperer told her English class t...9. LEARNING Ms. Klemperer told her English class that each week students tend to forget one- sixth of the vocabulary words they learned the previous week. Suppose a student learns \( 60 \) words. The number of words remembered can be described by the function \( W ( x ) = 60 ( \frac { 5 } { 6 } ) ^ { x } \) , where \( x \) is the number of weeks that pass. How many words will the student remember after \( 3 \) weeks? 

Answer

\(34.72\)

Solución
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Related Questions
Q:

Find the inverse for each of the following functions. 

\(f ( x ) = 3 x + 1\)

\(g ( x ) = 1 x ^ { 3 } - 5\)

\(h ( x ) = \frac { 3 } { x + 5 }\)

\(j ( x ) = \sqrt[ 3 ] { x + 1 }\)

 

A: See Answer #Algebra
Q:

The total revenue from the sale of a popular book is approximated by the rational function \( R ( x ) = \frac { 1700 x ^ { 2 } } { x ^ { 2 } + 4 } \) , where \( x \) is the number of years since publication and \( R ( x ) \) 

is the total revenue in millions of dollars.  

 

(a) Find the total revenue at the end of the first year. 

 

(b) Find the total revenue at the end of the second year. 

A: See Answer #Algebra