To know which of the following expressions are polynomials, let us look at the definition of a polynomial:
Polynomial is derived from poly- (which means "many") and -nomial (meaning "term"), so it says "many terms".
For an instance: 
is a polynomial, but 
is not a polynomial because it contains single term only.
We must keep in mind that in polynomial it can have variables, constants, and exponents but it can never have division by a variable.
Now lets, look at the
since it has got one term it can not be a polynomial.
: it has got <em>more than one term</em> therefore, <em>it is a polynomial. </em>
: again it has got just one term so it is not a polynomial.
: Since it has got <em>more than one term</em>, so again<em> it is a polynomial. </em>
Step-by-step explanation:
Divide 87 by 2 to represent how many chairs will be occupied.
43 1/2 chairs will be occupied, meaning that 43 chairs have 2 people, and one chair has 1 person.
The chair with one person is represented as the last chair.
The y-intercept would be (0,0) so your equation would be y=(-x)+0, or y=(-x)
Answer:
The 2 equations are E = 2K and K = E-3
Step-by-step explanation:
Let the height of Eric be E
Let the height of Kevin be K
Eric is twice as tall as his little brother Kevin
E = 2K
Kevin is also three feet shorter than Eric
K = E-3
The 2 equations are E = 2K and K = E-3
If we let the score of team tackle as x, then the score of team sack x - 7. Their combined scores totaled 83, in equation form, that is:
x + x - 7 = 83
Solving for x
2x = 83 + 7
2x = 90
x = 45
x - 7 = 38
The two scores are 45 and 38.<span />
