Cho phép biến đổi tuyến tính f∶ R^2→ R^2 thỏa f(1;0)=(3;1),f(1;2)=(1;5).Tìm ma trận của f đối với cơ sở R^2 là B = {u=(1;1) ; v=(1;2)} ?

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

Arecipe calls for 32 fluid ounces of heavy cream. how many 1 pint containers of heavy cream are needed to make the recipe?