Mathematics, 05.10.2019 05:00 kenziesanders01

Given the expression 5a2b – 13ab + 7a3 – 4b, do the following as instructed below:
1. write the polynomial in descending order.
2. classify the polynomial by the number of terms.
3. state the degree of the polynomial.
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ANSWER TO QUESTION 1

The given expression is

$5 {a}^{2} b - 13ab + 7 {a}^{3} - 4b$

To write the polynomial in descending order means we should write in decreasing powers of

So in descending order we have,

$7 {a}^{3} + 5 {a}^{2}b - 13ab - 4b$

ANSWER TO QUESTION 2

When a polynomial is in simplified form and it has one term, we call it a monomial.

If a simplified polynomial has two terms,it is called a binomial.

If a simplified polynomial has three terms, it is called a trinomial.

If a simplified polynomial gas four or more terms, we just call it a polynomial.

The given polynomial

$5 {a}^{2} b - 13ab + 7 {a}^{3} - 4b$

has four terms and it us in simplified form, so it is classified as polynomial.

ANSWER TO QUESTION 3.

The degree of the polynomial is the highest degree the polynomial has.

We calculate the degree by adding the exponents of the two variables of each term.

For instance the first term is
$7 {a}^{3} = 7 {a}^{3} {b}^{0}$
degree = 3 + 0 = 3

Since the highest degree is 3, we say the degree of the polynomial 3.

Answer from: Quest

the population of other specie of birds will decline or other specie of birds will find some alternate source of food to survive.

explanation:

according to the competitive exclusion principle, which is also known as gause's law, two specie living in the same niche and feeding on the same resource cannot co-exist stably.

as we have well studied the theory of natural selection which states that only those organisms survive which have better tendency to compete for food and adapt to the environmental conditions.

coming towards the question, what wi ll happen when one species outcompetes the other for the small fish , the other specie will not get enough food and will start to die or decline in population. eventually either other specie needs to find another alternative food source for itself or migrate at some other location where there is less competition otherwise it will just not exist anymore at that niche.

hope it !

Answer from: Quest

mia khalifa

step-by-step explanation:

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