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Activity for General Sebast1an‭

Type On... Excerpt Status Date
Edit Post #286808 Initial revision over 2 years ago
Question What's the common ratio for this geometric sequence?
Delayed learning some math, now I'm back at it. Geometric sequences. Basically a sequence where it has a common ratio. An example: ``` Sequence = {14, 28, 56, 112} Ratio = 2 Proof = 14 2 2 2... ``` You can see where I'm going with this. In my previous sequence question, I asked ...
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over 2 years ago
Comment Post #286709 @#36356 Maybe they *are* "intermediate terms", but remember, they are in between two values, making them means. If they have a common difference, then they form an arithmetic sequence, hence given the name "arithmetic means". Maybe they're both correct.
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over 2 years ago
Edit Post #286711 Initial revision over 2 years ago
Answer A: What are the 2 arithmetic means of $x + y$ and $4x - 2y$?
I think I got it. > TL;DR: The answer is $2x$ and $3x-y$. Apparently, since I was doing this at a state of "hard-thinking", I wasn't able to put much of this into mind simply because my brain was too exhausted with the problems, so I basically gave up when 2 letters on both sides showed up. ...
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over 2 years ago
Edit Post #286709 Post edited:
over 2 years ago
Comment Post #286709 @#36356 That's literally the term used in the book. And also, I just found the definition at the end of the module. > Arithmetic means - terms $m_1$, $m_2$, $\dots$, $m_k$ between two numbers $a$ and $b$ such that $a$, $m_1$, $m_2$, $\dots$, $m_k$, $b$ is an arithmetic sequence. So I did get it...
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over 2 years ago
Edit Post #286709 Initial revision over 2 years ago
Question What are the 2 arithmetic means of $x + y$ and $4x - 2y$?
I'm currently learning arithmetic sequences, and I've gotten to the means. I'm answering an activity as a test to see if what I'm doing is right. Here's an example through format: ``` First term = 10 Last term = 40 Arithmetic means = 5 Answer = {15, 20, 25, 30, 35} ``` I'm sure means wo...
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over 2 years ago
Comment Post #284773 Now *that*'s the kind of answer I'm looking for.
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about 3 years ago
Comment Post #284723 Welp, I tried. At least I gave what I want to reach.
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about 3 years ago
Edit Post #284723 Post edited:
about 3 years ago
Edit Post #284723 Post edited:
about 3 years ago
Comment Post #284723 @#53410 I think I got the gist. Seems clearer enough now.
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about 3 years ago
Edit Post #284723 Post edited:
about 3 years ago
Edit Post #284723 Initial revision about 3 years ago
Question Can we add without using addition?
Is there a formula that applies $a + b = c$ without addition. I tried many times to make such equation. Here's what I have in mind, we get 2 values, call them $a$ and $b$. The objective is to get the sum, without using addition at all. What does "no addition" mean here? Basically, you can't use th...
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about 3 years ago
Comment Post #283947 Man, that's a great explanation that I peed my pants from it. Thanks for the explanation, it really helps!
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about 3 years ago
Edit Post #283945 Post edited:
about 3 years ago
Edit Post #283945 Post edited:
about 3 years ago
Edit Post #283945 Initial revision about 3 years ago
Question What're the orders for equation expressing?
When doing an equation in programming or real calculations, equation expression takes in a specific order. In a single equation, I use the PEMDAS/GEMDAS order, which goes: - Perform all operations that are grouped up by parentheses first before non-grouped ones; the more it's grouped will be perfo...
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about 3 years ago
Edit Post #283300 Post edited:
over 3 years ago
Edit Post #283300 Initial revision over 3 years ago
Answer A: Is replacing the entire question with a different one appropriate?
I think for the whole network, no such thing is supposed to be allowed. You make a question, then edit it if you think something in place looks wrong, or you made a typo. Just let it be that way, the same question. Then, in some scenario, either the post got deleted then undeleted, or maybe clo...
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over 3 years ago
Comment Post #282375 Understandable. Have a great day.
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over 3 years ago
Edit Post #282286 Initial revision over 3 years ago
Question Are challenge-like questions like these considered on-scope in Mathematics CD?
I have this now-deleted question and here's what's it all about. For every single answer, a different $y$ would be used to exponentiate $x$. The question revolves getting $x^y$ using $(x-1)^y$ and something to add at it. I already added an answer in it for $x^2$ so that when it's restored, you guy...
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over 3 years ago
Edit Post #282279 Initial revision over 3 years ago
Answer A: What formula can get $x^y$ by using $(x-1)^y$ as a base?
$x^2$ For this one, use $1$ as base and keep it as $1^2$. To get $x+1^2$, you can simply use the equation $x^2 = (x - 1)^2 + (x 2 - 1)$. For example, getting $3^2$ is as follows: $$ 3^2 = (3 - 1)^2 + (3 2 - 1) $$ $$ 3^2 = 4 + (6 - 1) = 4 + 5 $$ $$ 3^2 = 9 $$
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over 3 years ago