George is studying a computer model of a DNA molecule, in which the letters A, C, G, and T are listed in a very long sequence. The model
includes a total of 2000 genes that are scattered along the full length of the molecule. The genes make up only a small fraction of the molecule.
George wants to identify the locations of the genes. Which would be the MOST USEFUL first step to follow?
A. Divide the model molecule into 2000 segments of equal size.
B. Identify all of the start codons in the model molecule.
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C. Identify the promoter regions in the model molecule.
D. Divide the model molecule into three-letter pieces.

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

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.

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x