Does anyone know the coefficients?

Question

Does anyone know the coefficients in the equation-
-10c-6+c?
Also..
what is a irrational and rational number? example please.
please explain.

Answer 1

QUESTION 1:
-10c - 6 + c

Start by grouping your like terms:
(-10c + c) - 6

Now simplify:
-9c - 6

Coefficients are simply the multipliers of each term. -9 would be the coefficient on the c term. -6 would be the coefficient of the ones term.

If you had something more complicated like:
25x² - 10x + 5

The coefficients would be 25 (for x² term), -10 (for x term) and 5 (for ones term).

QUESTION 2:

Any integer (e.g. -5, 0, 27), any fraction (e.g. ½), any decimal (0.572, -43.7) and any repeating decimal (e.g. 0.4545..., 0.3333...) is *rational*

That's because it can be written as a *ratio* of integers.

In my examples:
-5 = -5/1
0 = 0/1
27 = 27/1
½ = 1/2
0.572 = 572/1000 = 143/250
-43.7 = -473/10
0.4545... = 45/99 = 15/33
0.3333... = 1/3

The exception to the decimal rule is if it goes on forever without repeating. For example, the decimal value of π starts 3.141592653... but it never repeats. Similarly √2 = 1.41421356... never repeats. Numbers like π, e, √2, √5, log 7, etc. are irrational.

Answer 2

the coefficients are the numbers before the variable. In this case its C.
So coefficients are: -10, and 1

Rational numbers are any numbers that could be written in a form of fractions. such as 2 and 1/2 are rational numbers ( 2 is the same thing as 2/1).

Irrational numbers are numbers such as pi. Pi, you might know is a non-repeating decimal expansion. like it goes from 3.14 and onward. But it has no pattern. 1/3 has a pattern because its just .3333 and then followed by more 3's.
So numbers that have non-repeating decimal expansion are irrational numbers. Also square root of a non-perfect square root number is irrational. such as sqrt of 2 is irrational. Meaning you can't write the square root of 2 in a form of fraction or repeating numbers.

Answer 3

the coefficients are -9 and -6

A rational number is a number that has at least two integer factors, p and n.
An irrational number does not have two integer factors (i.e. pi or sqrt(2))

Answer 4

-9c = 6
c= -2/3
"In mathematics, an irrational number is any real number that is not a rational number — that is, it is a number which cannot be expressed as a fraction m/n, where m and n are integers, with n non-zero."
"In mathematics, a rational number is a number which can be expressed as a ratio of two integers."

Answer 5

-10 and 1
rational number- a number that can be written as the quotient of two integers
irrational- a number that is not the quotient of integers

I know it might not sound normal, but it's right, trust me