Grace placed 3 strands of bacteria in a petri dish. The bacteria strands triple every hour. Write a formula to represent how many bacteria strands are present at the nth
hour. Then use the formula to determine how many strands of bacteria are present at
4 hours.
A)
f(n) = 3(3)"; 243 strands of bacteria
B)
fin) = 3(6)”; 3,888 strands of bacteria
C)
f(n) = (3)"; 81 strands of bacteria
D)
A(n) = (3)3n; 1,000 strands of bacteria