Let a be an m x n matrix. suppose x is in
thenullspace of ata.
a) show that (ax) "dotted
with"(ax) = 0.

b)use part a) to show that x is in the nullspaceof
a.

Which interval for the graphed function contains the local maximum? [–3, –2] [–2, 0] [0, 2] [2, 4]

Your friend swims on the school team. in his first four races, his times are 24.7, 23.5, 25.6, and 27.2 seconds. which time listed for his next race would make the range larger?

What is another way to express 36 +32