Answer:
Step-by-step explanation:
1,
-10,20,-40,80,...
common ratio=20/-10=-2
it is a geometric sequence.
2.
15,-5,-25,-45
common difference=-5-15=-20
it is an arithmetic sequence.
Answer:
cool dude
Step-by-step explanation:
Step-by-step explanation:
y + 3 = - (x + 3)
y + 3 = -x - 3
y = -x - 6
If f(x)=1/9x-2
then f^-1(x) will be
lets assume f(x)=y
y=1/9x-2
y+2=1/9x
9(y+2)=x
f^-1(x)=9(y+2)
rest u can do with the same method
4.5 hrs because 162.50-50 = 112.50
112.50/25= 4.5
