Answer:
tenths.........
Step-by-step explanation:
.....is the answer
Answer:
Step-by-step explanation:
x + 159 = 180
x = 21
Answer:
a)5
b)17
c) ?

Step-by-step explanation:
Answer:
coefficent matrix
Step-by-step explanation:
P. 366
"If the column of constant terms is not included, the matrix reduces to that of the coefficent matrix of the system"
-1 -3 -1
9 -9 -1
-1 -3 4
(10 + 9) x (3 - 1) x 2 = +75
19 x 2 x 2
76
76 > 75