Mary is at least 40 years old. Her age is 13 years more than 3 times Henry’s age. Which inequality can be used to determine x, Henry’s age in years? Group of answer choices
1.x + 3 ≥ 40
2.13 + 40 ≥ 3x
3.3x + 13 ≥ 40
4.40 + x ≥ 13(3)

The answer is 3.

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.

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step-by-step explanation: