Answer:
a) and b) in photo.
there is no point left outside the circles, then 11+15 is even.
c) yes it is, because if both numbers are odd, they will have one point outside the circles each, and those two points will form an other pair.
odd number: 2n+1
even number: 2m
(m and n represent any natural number)
2n+1 + 2k+1= <em>the sum of two odd numbers</em>
=2(n+k) +2
=2(n+k) +2 =2(n+k+1)
<em>the sum of 3 natural numbers will be a natural number too. let be m=n+k+1 with m n and k natural numbers.</em>
=2m <em>even number</em>
Answer:
Option A
Step-by-step explanation:
Slope of a line passing through two points and
is given by,
Slope =
Line shown in the graph is passing through two points (2, 8000) and (4, 7000).
Therefore, slope of the given line =
= -500 feet per mile
Which means, altitude decreases by 500 ft every mile.
(Negative sign represents the decrease)
Option A is the correct option.