What is communication ? What are the different types of communications ? give a diagram (5)​

Answer:

i) p(y) is quadratic polynomial and q(x) is a cubic polynomial

ii) degree of p(y)=2 , degree of q(x)=3

iii)p(-2)= 9(-2)²-9(-2)+2

= 9(4)+18+2

=36+18+2

=56

iv) coeff of y²= 9

coeff of x³= 1

The answers are:

i) p(y) is a trinomial and q(x) is a binomial.

ii) The degree of p(y) is 2, and the degree of q(x) is 3.

iii) The value of p(-2) = 56.

iv) The coefficient  [tex]y^2[/tex] is 9, and the coefficient  [tex]x^3[/tex] is 1.

Step-by-step explanation:

Given: Two polynomials [tex]p(y) = 9y^2 -9y+ 2[/tex] and [tex]q(x) = x^3 -64[/tex]

Solutions:

i) p(y) has three terms, hence, p(y) is a trinomial.

q(x) has two terms, hence, q(x) is a binomial.

ii) A polynomial's degree is the highest or the greatest power of a variable in a polynomial equation.

Thus, the degree of p(y) is 2, and the degree of q(x) is 3.

iii)The value of p(-2) can be calculated by putting [tex]y = -2[/tex] in the equation:

[tex]p(-2)= 9(-2)^2-9(-2)+2[/tex]

[tex]= 9(4)+18+2[/tex]

[tex]=36+18+2[/tex]

[tex]=56[/tex]

Thus, p(-2) = 56

iv) The coefficients are the numbers written before the variables.

Thus, the coefficient  [tex]y^2[/tex] is 9, and the coefficient  [tex]x^3[/tex] is 1.

Answer:

Changes in pressure can raise or lower the freezing point of a substance. Generally, pressures lower than 1 atmosphere lower the temperature at which a substance freezes, but for water, a higher pressure gives a lower freezing point. ... For water at low pressures, vapor directly turns to ice without becoming a liquid.

Explanation:

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Answer:

Changes in pressure can raise or lower the freezing point of a substance. Generally, pressures lower than 1 atmosphere lower the temperature at which a substance freezes, but for water, a higher pressure gives a lower freezing point. ... For water at low pressures, vapor directly turns to ice without becoming a liquid.

Answer:

periodic change

The change that take place at regular intervals of time is called periodic change.

non periodic change

The change that do not take place at regular interval of time is called non periodic change.

Explanation:

Periodic change:- Periodic changes are the changes that tend to repeat or reoccur at the same interval of time periodically. There are infinite examples of a periodic change like a simple pendulum, the change in the position of a simple pendulum can be periodic and sometimes it can also be categorized as cyclic change.

Non periodic change:- The changes which do not repeat themselves after a regular interval of time are known as non-periodic changes. Some examples of non-periodic changes are natural disasters like earthquakes, cyclones,