What number is not part of the domain of f(x) = 3/x+5 how can you tell

Domain of a Function is a Set of Values under which the Function is defined or a Set of Values which satisfy the respective Function.

The Given Function is : f(x) =

When function is a Fraction, it Cannot be defined when the denominator becomes zero. Because when the denominator is zero, the fraction tends to ∞ (because anything divided by zero tends to ∞)

As the given function is a Fraction which contains the variable x in it. The given Function is not defined when x + 5 = 0

⇒ The Given Function is not Defined when x = -5

Because at x = -5, The Function tends to ∞ and becomes undefinable

So, As the Domain is the set of Values which satisfies the Function, -5 cannot be the part of the Domain

-5 is the Number which is not part of the Domain

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.

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation: