et H be the set of all vectors of the form [Start 3 By 1 Matrix 1st Row 1st Column 4 t 2nd Row 1st Column 5 t 3rd Row 1st Column 9 t EndMatrix ]. Find a vector v in set of real numbers R cubed such that Upper H equals Span StartSet Bold v EndSet. Why does this show that H is a subspace of set of real numbers R cubed?

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.