[T] The temperature (in degrees Celsius) of a city in the northern United States can be modeled by the function T ( x ) = 5 + 18 sin [ π 6 ( x − 4.6 ) ] , where x is time in months and x = 1.00 corresponds to January 1. Determine the month and day when the temperature is 21 °C.
[T] The temperature (in degrees Celsius) of a city in the northern United States can be modeled by the function T ( x ) = 5 + 18 sin [ π 6 ( x − 4.6 ) ] , where x is time in months and x = 1.00 corresponds to January 1. Determine the month and day when the temperature is 21 °C.
[T] The temperature (in degrees Celsius) of a city in the northern United States can be modeled by the function
T
(
x
)
=
5
+
18
sin
[
π
6
(
x
−
4.6
)
]
, where x is time in months and x = 1.00 corresponds to January 1. Determine the month and day when the temperature is 21 °C.
7. [10 marks]
Let G = (V,E) be a 3-connected graph with at least 6 vertices. Let C be a cycle in G
of length 5. We show how to find a longer cycle in G.
(a) Let x be a vertex of G that is not on C. Show that there are three C-paths
Po, P1, P2 that are disjoint except at the shared initial vertex and only intersect
C at their final vertices.
(b) Show that at least two of P0, P1, P2 have final vertices that are adjacent along C.
(c) Combine two of Po, P1, P2 with C to produce a cycle in G that is longer than C.
1. Let X and Y be random variables and suppose that A = F. Prove that
Z XI(A)+YI(A) is a random variable.
30. (a) What is meant by the term "product measur"?
AND
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