Form the intersection for the following sets. m = { } n = {6, 7, 8, 9, 10} m ∩ n = {0, 6, 7, 8, 9, 10} {∅, 6, 7, 8, 9, 10} {6, 7, 8, 9, 10} { }

The common element in both the sets is empty set.

M ∩ N = { }

Step-by-step explanation:

We have given two sets:

M={ } , N={6,7,8,9,10}

We have given two sets, the intersection of M and N is the set that contains elements  that belong to M and to N at the same time. In simple words M ∩ N means common elements in both M and N.

In the given question one set is empty set. Since the empty set is included in any set, it is also included in N although we don't see it. Therefore the common element in both the sets is empty set

Thus the answer is:

M ∩ N = { }

Acres = 640 * sq miles
acres = 640 * 3.5
acres = 2,240 square miles


Incidentally, here's how that 640 acres per square mile is derived.
1 acre = 43,560 square feet
1 square mile = 5,280^2 = 27,878,400 square feet
27,878,400 / 43,560 = 640 acres exactly