Answer:
4,000
Step-by-step explanation:
Answer:
{x | x R, x = 7 }
Step-by-step explanation:
x - 6 = 1
x - 6+6 = 1+6
x=7
{x | x R, x = 7 }
A.
B.
C.
D.
20
120
72
Answer:
= 90 - 3n
Step-by-step explanation:
There is a common difference between consecutive terms, that is
84 - 87 = 81 - 84 = - 3
This indicates the sequence is arithmetic with nth term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 87 and d = - 3 , then
= 87 - 3(n - 1) = 87 - 3n + 3 = 90 - 3n
What's the center?