Find the average rate of change for f(x) = x2 − 8x + 15 from x = −3 to x = 2.
1 answer:
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Answer:
Step-by-step explanation:
Given expression:
To evaluate the expression.
Solution.
The values are
Let -----------1
Multiplying 10 both sides.
----------2
Subtracting 1 from 2.
-
-------------------------------------------
Dividing both sides by 9.
Let
Multiplying both sides by 100
------------3
Multiplying 1000 both sides.
----------4
Subtracting 3 from 4.
-
-------------------------------------------
Dividing both sides by 900.
So, we can evaluate the given expression as:
⇒
⇒
⇒
Taking LCD = 900
⇒
⇒
Adding numerators.
⇒
⇒
⇒ (Answer)
Answer:
- 13
Step-by-step explanation:
<u>Use formula for continuous interest:</u>
- A =
, where r- interest rate, t- time in years
<u>If A = 3P, and r = 0.085 then the equation is:</u>
- ln 3 = 0.085t
- 1.099 = 0.085t
- t = 1.099 / 0.085
- t = 12.9 ≈ 13 years