Suppose a culture of 100 bacteria is put in a petri dish and the culture triples every hour. How many bacteria will there be after 6 hours?

1800

Step-by-step explanation:

The equation for the colony's growth every hour: 100 × 3

Times that growth by 6

(100 × 3) × 6 = 1800

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.