What is the decrease in volume of air when pyrogallol is shaken with 30.00cm of air?
A. 0.63cm'. B. 0.06cm. c. 15.00cm'. D. 6.30cm.
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answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6

d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day

it would be c. predictability