Hello,
f(x)=6(x+2)-3=6x+12-3=6x-9
y=6x-9==>x=6y-9==>6y=x+9==>y=(x+9)/6
if x=21 then y=(21+9)/6=30/6=5
f^(-1)(21)=5
Answer:
Helene invested $700 in the 5% interest account and $500 in the 10% interest account.
Step-by-step explanation:
Answer: 150 Degrees
Step-by-step explanation:
150 degrees
since the ratio is 5: 1, certainly there are 6 parts,
so, one part equals, 30, which 180/6,
hence the complement angle which is five times more will be 5*30 = 150.
Answer:
Factorizing as the Difference of Two Squares
1. 144x2 - 49
Step-by-step explanation:
Where is the picture?
