Choánhxạtuyếntính f :R3 →R3 vàhaicơsởcủa R3 : B={b1 =(1,3,3),b2 =(−n,6,5),b3 =(1,2,2)}, C ={c1 =(2,−n+3,3),c2 =(−5,−1,−5),c3 =(1,0,1)}. Biết: f(b1)=(−5,6,4), f(b2)=(−8,5,2), f(b3)=(−9,−2,−5). a. Tìmmatrận A=[f]E3 ,từđósuyrabiểuthứccủa f(x1,x2,x3).

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?