Q1. The limit from the right is -4. (The limit from the left, and the value of f(3) are different, but that doesn't matter for the question asked. Taken together, they mean that the limit as x approaches 3 does not exist. But that is not the question asked.)
Q2. f(x) = 4/x.
f'(x) = -4/x^2, so f'(2) = -4/2^2 = -1.
Q3. Since the denominator is zero at x=7, the only answer choice that makes any sense is the first one:
-∞; x = 7
It also happens to be the right one.
Answer:
Man has to pay $1921.19 per month.
Step-by-step explanation:
The formula of Compound Interest is:
where A = Amount
P = Principle
r = rate
n = Number of Compounding per year
t = total number of year
Here, A = 33,000, r = 9% = 0.09, n = 12(monthly), and t = 48(48 months).
Putting all these values in above formula:
⇒
⇒
⇒
⇒ P = 33000 ÷ 1.4314 = 23054.35
Monthly payment = 23054.35 ÷ 12 = 1921.19
Hence, Man has to pay $1921.19 per month.