38. find the mst of the network shown in fig. 7-39 using
kruskal's algorithm, and give its weight.
03.1
ob
-4.1
3.6
figure 7-39

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Which of the following represents the factorization of the trinomial below? x^2+7x-30

For the chance to be team captain, the numbers 1-30 are put in a hat and you get two chances to pick a number, without replacement. which formula correctly shows how to find the probability that you choose the number 1 and then 2?