Answer:
letter C is the right answer
Answer: B. 1 1/2
Step-by-step explanation:
Percent means parts out of 100
7%=7/100=0.07
'of' means multiply so
7%=0.7
7% of 280=0.07 times 280=196
12%=0.12
12% of 300=36
2%=0.02
2% of $1250=$25
Answer: 31 - 3n
Step-by-step explanation:
step one:
25 - 28 = -3
22 - 25 = -3
19 - 22 = -3
d = -3
Step two:
An = a1 + (n-1) d
= 28 + (n-1) -3
= 28 - 3n + 3
= 31 - 3n
a1= 28 d = 3

must be continuous in order to be differentiable, so we need to have

By its definition,
, and


so that
.
We want the derivative to exist at
, which requires that we pick an appropriate value for
so that
is also continuous. At the moment, we know
such that

We have


so that
(which means we need to pick
) and so 