His error was that he did not flip the inequality sign.
31<5x+6
25<-5x
-5>x
Answer:
4
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is

Here [ a, b ] = [ 3, 4 ] , then
f(b) = f(4) = - 1 ← from table
f(a) = f(3) = - 5 ← from table , then
average rate of change =
=
= 4
Answer:
Step-by-step explanation:
Considering the geometric sequence


As the common ratio '
' between consecutive terms is constant.



The general term of a geometric sequence is given by the formula:

where
is the initial term and
the common ratio.
Putting
,
and
in the general term of a geometric sequence to determine the 12th term of the sequence.







∵ 

Therefore,
Answer:
(-18) + (-2) = -20
Step-by-step explanation:
arrow is moving from -18 to -20.