Question

13 POINTS NEED THE ANSWERS TO THESE 2 PROBLEMS

Answer 1

9) 30 years

10) line passing through points AB and BC are perpendicular

Explanation:

9) p = 5t + 150

Current pop. (in thousands) is 150

Double pop. (in thousands) is 300

300 = 5t + 150

150 = 5t

t = 30

10) line passing through points AB and BC are perpendicular because their slopes are opposite and reciprocal

slope of AB = 3

slope of BC = -1/3