Question: determine if the columns of the matrix form a linearly independent set. [ 1 -3 3 -21 -3 7 -1 2 to 1-4 3 )

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

Classify the following triangle check all that apply

Karen will divide her garden into equal parts. she will plant corn in 8/12 of the garden. what is the lowest number of parts she can divide her garden into?