(0,0)
(0.1, 1.1)
(0.5, 5.5)
(0.8, 8.8)
(1,11)
(2,22)
(3,33)
(4,44)
(5,55)
(10,110)
(11, 121)
(20, 220)
(30, 330)
(90, 990)
etc, etc
9514 1404 393
Answer:
B. (n²+n)/2
Step-by-step explanation:
You only need to try n=2 in the answer choices to determine which one gives a result of 3.
A. (2+1)/2 = 3/2 ≠ 3
B. (2² +2)/2 = 3 . . . . correct choice
C. (2² -2)/2 = 1 ≠ 3
D. (2 -1)/2 = 1/2 ≠ 3
_____
<em>Additional comment</em>
The differences of the sequence 1, 3, 6, 10, ... are increasing, not constant. This means the rule will not be linear, but will be 2nd degree. (Second differences are constant.) This eliminates choices A and D immediately.
Answer:$40,861
Step-by-step explanation:
40,000+800+61=$40861
Ok, so what you want to do, is to start by adding the values together. So, she read an average of 36 pages for the first three days. So, you will multiply 36 by 3. Then, you will have 44 pages for the next three days, or 44 * 3. And finally, you have the last 10 pages. So, it is (36 * 3) + (44*3) + 10. So, 36 times 3 is 108, and 44 times 3 is 132. So, you now have 108 + 132 + 10. Add all of those values together, and your final answer is
250.