2340+140+268=$<em><u>2748</u></em>
1
2340
+140
+268
_____
2748
Answer:

Step-by-step explanation:
An arithmetic sequence that is described by the explicit formula ...

can also be described by the recursive formula ...

Matching parts of the formulas, we see that a1 = 4, d = -7. Putting these values into the explicit formula gives ...

Answer: a = -2 and c = 7
Step-by-step explanation:
(this answer uses some basic calculus)
We know that
, and since
is a maximum of
, then
. That means
, so
. Then since
, we have
, so
.
Answer:
5x-26
Step-by-step explanation:
3(3x-6)-4(x+2)
Distribute the 3 and -4.
9x-18-4x-8
Combine like terms.
5x-26
Answer:
How did the Silk Road connect China to the rest of the world?
Step-by-step explanation:
How did the Silk Road connect China to the rest of the world? How did the Silk Road connect China to the rest of the world? How did the Silk Road connect China to the rest of the world? How did the Silk Road connect China to the rest of the world? How did the Silk Road connect China to the rest of the world?