SOLUTION: A​ once-popular children's doll is slowly declining in popularity. The quartic function f(x)= 0.002x^4+0.025z^3-0.364x^2-7.243+86.993, where x is the number of years since&#

Algebra ->  Trigonometry-basics -> SOLUTION: A​ once-popular children's doll is slowly declining in popularity. The quartic function f(x)= 0.002x^4+0.025z^3-0.364x^2-7.243+86.993, where x is the number of years since&#      Log On


   

Question 1037203: A​ once-popular children's doll is slowly declining in popularity. The quartic function f(x)= 0.002x^4+0.025z^3-0.364x^2-7.243+86.993, where x is the number of years since​ 1993, can be used to estimate the number of dolls of this type that were sold​ (in thousands) during a given year from 1993 to 2003. Estimate how many dolls were sold in 2000.
A).The number of dolls sold in 2000 was approximately ?
​(Round to the nearest​ thousand.)
Found 2 solutions by kysandra98, ikleyn:
Answer by kysandra98(1) About Me  (Show Source):
Answer by ikleyn(52906) About Me  (Show Source):
You can put this solution on YOUR website!
.
First, calculate the number of years from 1993 to 2000.


Next, substitute this number to the formula, instead of x.


Then you will get the answer.


Happy calculations !

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