Wednesday

April 1, 2015

April 1, 2015

Posted by **Yadira M** on Sunday, August 16, 2009 at 3:10pm.

- statistics -
**MathMate**, Sunday, August 16, 2009 at 6:02pmThis is really a problem of evaluation of functions.

As indicated, for year

2000, x=1, so for

2008, x=2008-1999=9, and for

2010, x=2010-1999=11

Let

y = f(x) = 90+0.9x+3x²

for 2000, f(1) = 90 + 0.9*(1) + 3*1² = 93.9

for 2008, f(9) = 90 + 0.9*(9) + 3*9² = 341.1

for 2010, f(11)= 90 + 0.9*(11) + 3*11² = 462.9

Note that in general, the number of repairs is an integer (whole number), so the estimate should be rounded to the nearest integer.

**Answer this Question**

**Related Questions**

Operations management - An appliance manufacturer wants to contract with a ...

Math-Advanced Pre-Algebra - A computer repair shop charges a flate rate of 50$ ...

Algebra - a car repair shop charge $80 per hour for labor and $210 for the parts...

statistics - You are the owner of an auto repair service. History tells you it ...

Algebra - An emergency plumber chargers $65 as a call-out fee plus an ...

math - how would i write a equation if the company charges $38 for a house call ...

math - how would i write a equation if the company charges $38 for a house call ...

Probability - You are the owner of an auto repair service. History tells you it ...

Statistics - A large television repair service claims that its average repair ...

math - Suppose that the time (in hours) required to repair a machine is an ...