Which is the 10th term of the geometric sequence 1/27, 1/9, 1/3, 1,
and fast!
here are the answers: 729
243
81
27

3: 2

step-by-step explanation:

shorter piece is 2: 3, so just reverse it, and you get 3: 2

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.