Cho hệ các vector U=({(1,2,;4);(0,-1,-3);(2,3,5);(1,0 ,-2)}. a. Tìm số chiều và một cơ sở W của không gian con sinh bởi hệ vector U. b. Tim tham số k để ý = (2, 3, k ^ 2 + 1) là một tổ hợp tuyến tính của W, và suy ra []u w.

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

understand that i don't know the answers

will someone answer his question

the answer is 3/2 and for decimal: 1.5

hope i

-lavira: )

45.36 feet per second.

step-by-step explanation:

to find the most accurate determination for the number of feet per second tyrone traveled on his way to work let us convert miles to feet and minutes to seconds.

1 mile = 5280 feet.

1 minute = 60 seconds.

now we will divide 158400 by 3492 to find the most accurate determination for the number of feet per second tyrone traveled on his way to work.

therefore, tyrone traveled on his way to work at the rate of 45.36 feet per second.