Show that the difference between any two consecutive square number is an odd number

Step-by-step explanation:

this applies to any two consecutive square numbers

1 and 4

144 and 169

since a square number is formed by multiply a number by itself and the normal sequence of numbers is odd even odd even...

no odd number will be followed by its kind and same to even numbers

square of 2 - square of 1

4 - 1 = 3

square of 13 - square of 12

169 - 144 = 25

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

answer: .75 km

step-by-step explanation: