Dropping less than in 2 in./m at the emerging from the mountains a river drains into the ocean. one days discharge at its mouth, 4.8 trillion gallons, could supply all of country a’s household for three months. based on this statement determine how much water an average household uses each month. assume that there are 200 million households in country a

i am thinking c. sorry if im wrong .

step-by-step explanation:

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.