Answer:
A). $5.50
B).19.50
Step-by-step explanation:
A). 3.5(1)+2=5.50
B). 3.5(5)+2=19.50
All you are are doing is inputing the number of games played (x) in for x in the function/equation.
Answer:
(b+4) and (b-1)
Explanation:
do a generic rectangle
b times b is b^2
b times 4 = 4b
-1 times b = -1b
-1 times 4 = -4
b^2+4b-1b-4
simplify
b^2+3b-4
Answer:
See explanation below.
Step-by-step explanation:
The area of a plain domino equal the area of a 2-by-1 board, so it is easy to see that D4=4, D5=5, and so on.
Let's prove by induction than Dn=n for every natural number n.
1) Obviously, D1 is true.
2) Assume now that Dn is true for a given natural n, that is to say, a 2-by-n board can be covered with n dominoes.
<em>
we must prove that this implies D(n+1) is also true.
</em>
But the area of a 2-by-(n+1) board equals the area of a 2-by-n board plus the area of a 2-by-1 board.
By 2), we can cover the 2-by-n board with n dominoes and by 1) we can cover the 2-by-1 board with 1 domino, so we just need n+1 dominoes to cover the 2-by-(n+1) board, which is what we wanted to prove.
