In Exercises 21 and 22, mark each statement True or False. Justify each answer on the basis of carefull reading of text A. The column of a matrix A is linearly independent if the equation Ax=o has a trivial solution.
B. If S is a linearly dependent set, then each vector is a linear combination of other vector in S.
C. The columns of any 4*5 matrix are linearly dependent.
D. If x and y are linearly dependent and if (x, y,z) is linearly dependent then z is in span (x, y)

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!

step-by-step explanation:

ok one would be money, and the other would be refreshments or something similar. if each bag of popcorn is 5.00 and each drink is half of that that means drinks are 2.50 the proper way to do that would to look and see how much of each you can buy without exceeding a limit of 30.00

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour