The system of three linear equations in three variables below is to be solved using technology with matrices. 2x + z = 5y - 17.75
4x - 3y = 5z + 8.25
8x + 2z = y + 2z + 6.5
Which matrices could be used to solve the system of equations?
Pls answer quickly!

step-by-step explanation:

abde or 1,2,4, 5 is the answer

step-by-step explanation:

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation: