75. Sailing A sailboat begins a voyage with 145 lb of food. The crew plans to eat a total
of 15 lb of food per day.
a. Write an equation in slope-intercept form relating the remaining food supply y to the number of days x
b. Graph your equation

y = -15x + 145

The y intercept is at 145. Every point is either -15/1 or 15/-1

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)