Problema Solution

the polynomial 0.041h -0.018a-2.69 can be used to estimate the lung capacity, in liters, of a female with height h, in centimeters, and age a, in years. Find the lung capacity of a 20 -year- old woman who is 160 centimeters tall.

Her lung capacity is ___ liters.

(round to the nearest hundredth)

Answer provided by our tutors

substitute 20 for a and 160 for h

lung capacity = .041h - .018a - 2.69

= .041(160) - .018(2) - 2.69

= 6.56 - .36 - 2.69

= 3.51 liters