Let the vector U = {(1,2,4); (0, -1, -3); (2,3,5); (1,0, -2)}. a. Find the dimension and a subspace basis W generated by the vector U.
b. Find the parameter k to u = (2, 3, k^2 + 1) is a the law of W, and deduce [u] w.

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?

Yesterday, george drank 1 small bottle and 2 large bottles, for a total of 1,372 grams. the day before , he drank 1 small bottle and 1 large bottle, for the total of 858 grams. how many grams does each bottle hold?

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b. false