Answer:
For f(x) to be differentiable at 2, k = 5.
Step-by-step explanation:
For f(x) to be differentiable at x = 2, f(x) has to be continuous at 2.
For f(x) to be continuous at 2, the limit of f(2 – h) = f(2) = f(2 + h) as h tends to 0.
Now,
f(2 – h) = 2(2 – h) + 1 = 4 – 2h + 1 = 5 – 2h.
As h tends to 0, lim (5 – 2h) = 5
Also
f(2 + h) = 3(2 + h) – 1 = 6 + 3h – 1 = 5 + 3h
As h tends to 0, lim (5 + 3h) = 5.
So, for f(2) to be continuous k = 5
Answer:
6 3/16
Step-by-step explanation:
4 9/16=73/16
1 5/8=13/8=26/16
73/16+26/16=99/16=6 3/16
I don’t know if you’ve ever heard of the amazing device known as a calculator but the answer is 1,188
By the 12th month the family would have payed $420 because....
35•12=420
