Answer:
The average rate of change for f(x) from x=−1 to x = 4 is, 1
Step-by-step explanation:
Average rate A(x) of change for a function f(x) over [a, b] is given by:

As per the statement:

we have to find the average rate of change from x = -1 to x = 4
At x = -1

and
at x = 4

Substitute these in [1] we have;

⇒
⇒
Simplify:
A(x) = 1
Therefore, the average rate of change for f(x) from x=−1 to x = 4 is, 1
(1-0.15)=0.85
0.85 (155.25)=131.962
estimated answer
131.962 is about $132.00
Answer:

Step-by-step explanation:
When
, we have
.
Combining like terms on the right side, we have
.
Finally, dividing by
we get
.
We note that
and
, so
.
So,
and we're done!
Use the compound amount formula:
$2,300 = P(1+0.02)^3. Solve this for P:
P = $2,300 / (1.02)^3 = $2167.34.
By depositing $2,167.34 now, Cheryl would have $$2300 after three years.
Answer:
the expression is -5 + 2. the sum is -3.
Step-by-step explanation: