The formula P=0.01A^2 + 0.05A + 107 models a woman's normal systolic blood pressure, P, at age A. Use this formula to find the age, to the nearest year, of a woman whose normal systolic blood pressure is 140mm hg.

Question

Mathematics

Elliot Griffith

25 December, 23:03

The formula P=0.01A^2 + 0.05A + 107 models a woman's normal systolic blood pressure, P, at age A. Use this formula to find the age, to the nearest year, of a woman whose normal systolic blood pressure is 140mm hg.

+4

Answers (1)

Know the Answer?

Alena Calhoun · Answer 1

0.01A²+0.05A+107=140

0.01A²+0.05A-33=0

A²+5A-3300=0

(A+60) (A-55) = 0

a=55 or - 60 (ignore the negative number because Age cannot be negative)

55 is the answer.