Answer:
Solution set= {(3,-9)}
Step-by-step explanation:
x² +6x-27=0
x² +9x-3x-27=0
x(x+9) -3(x+9)=0
(x-3)(x+9)=0
x-3=0; x+9=0
x=3; x=-9
B. Commutative porerty of addition
C. Associative property of addition
D. Identity Property of addition
4d = 1/3
Answer:
Y can be written as:
The repeating decimal 1.63636363 ...
The improper fraction 18/11
The mixed number 1 7/11
Step-by-step explanation:
6/11 = y/3
3 ÷ 11 = 0.272727272 (3/11)
6 × (3/11) = (1 7/11) 1.636363636