9n - 7 = 5n + 5 |add 7 to both sides
9n = 5n + 12 |subtract 5n from both sides
4n = 12 |divide both sides by 4
n = 3
Answer:
The nth term of the given sequence is .
Step-by-step explanation:
Here, the first term of the sequence = 54
Second term = 18
Third term = 6
Now,
and,
as
Hence, the terms of the given sequence are in GEOMETRIC PROGRESSION with common ratio = 1/3
Now, the nth term in GP is given as
So here,
Hence, nth term of the given sequence is .
Answer:
2 or more
Step-by-step explanation:
24 students forget their pencil out of 120 students.
Answer:
f⁻¹(-2) = 3 and f⁻¹(1) = 0.
Step-by-step explanation:
By the definition of inverse functions:
From the table, note that f(3) = -2.
Then by definition, f⁻¹(-2) = 3.
Likewise, f(0) = 1.
Then by definition, f⁻¹(1) = 0.