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ElenaW [278]
3 years ago
5

Determine whether the following sequence is geometric. 2,6,18,54

Mathematics
1 answer:
jonny [76]3 years ago
8 0

Answer: Yes, this is a geometric sequence.

Step-by-step explanation:

This is a geometric sequence since there is a common ratio between each term. In this case, multiplying the previous term in the sequence by  3  gives the next term.

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The concentration of a drug in the body decreases exponentially after a dosage is given. In one clinical study, adult subjects a
Yanka [14]

Answer:

Step-by-step explanation:

14 = 1000 e^{ k*1}

.014 = e^{k*1}

ln(.014) = k ln(e)

k = -4.268

~~~~~~~~~~~~~~~~~~

after 3 hrs

1000 e^{ -4.268*3}

0.00274

~~~~~~~~~~~~~~~

4 = 1000 e^{ -4.268*t}

.004 =  e^{ -4.268*t}

ln(.004)/-4.268 = t

t = 1.29368 hrs

4 0
3 years ago
A researcher posts an online advertisement offering $25 in exchange for participation in a short study. The researchers accepts
Anarel [89]
In this case, I say the answer is A because most short studies dont create valid samples. It all depends on what the short study was about...
5 0
3 years ago
Sasha practices piano for 45 minutes, 6 days a week. How many minutes does Sasha practice in a week? Use an area model to solve.
schepotkina [342]

Answer:

270

Step-by-step explanation:

Because i multiple 45 by 6

7 0
3 years ago
What is the answer to this problem
mr_godi [17]

Answer:

I think its the second one

Step-by-step explanation:

the other ones are fair and have a 50% chance on choosing.

  • I am so srry if I'm wrong but I'm pretty confident.
7 0
2 years ago
Read 2 more answers
Shadily softball team has a phone tree in case the game is canceled the coach calls three players then each of those players cal
irga5000 [103]

Answer: 27 players will be notified during the third round of calls.

Step-by-step explanation:

In case the game is canceled, the coach calls three players. This means that if each of these three players call three more players, the number of players that will be notified during second round of call would be

3 × 3 = 9 players.

If each of these nine players call three more players, the number of players that will be notified during third round of call would be

9 × 3 = 27 players.

The total number of players that would have been notified is

3 + 9 + 27 = 39 players

3 0
3 years ago
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