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stapel
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stapel
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10-18-2018,
12:40 PM
stapel
replied to a thread
Working out scale (find size of tent, given scale & drawing)
in
Pre-Algebra
How did you get "4 meters" and "10 meters"? These are not the correct values, and are not what you would have obtained, had you followed the...
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4 replies | 195 view(s)
10-18-2018,
12:38 PM
stapel
replied to a thread
basic quadratics help for equation 6m^2 + 11mn + 3n^2
in
Beginning Algebra
It appears that the "decomposition method" is another name for the "a-b-c method". (here) However, that method does not require that the quadratic...
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6 replies | 239 view(s)
10-17-2018,
06:40 PM
stapel
replied to a thread
Replying to a thread started by others
in
Administration Issues
This happens from time to time, even to moderators. Nobody seems to know what the issue is, though editing one's response can somehow trick the...
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1 replies | 154 view(s)
10-17-2018,
06:38 PM
stapel
replied to a thread
Discovery Math Square Solution Needed
in
Arithmetic
Maybe, but that's not what we do here. We help the student figure out how to do this on his own. So please reply with a clear listing of your...
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1 replies | 44 view(s)
10-17-2018,
06:26 PM
stapel
replied to a thread
Working out scale (find size of tent, given scale & drawing)
in
Pre-Algebra
How many one-centimeter squares do you count, going from the left side to the right side of the drawing? Since each square's width stands for 0.25...
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4 replies | 195 view(s)
10-17-2018,
06:22 PM
stapel
replied to a thread
Working out area: How many people can sleep in the tent?
in
Geometry and Trig
Until they tell you the dimensions of the tent, there is no way to answer this question. Sorry. ;)
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3 replies | 102 view(s)
10-17-2018,
06:19 PM
stapel
replied to a thread
Urgent help a short question: Does (-a^3)^2 equal -a^6 or +a^6 ?
in
Beginning Algebra
If you're not sure, try plugging some numbers in. For instance, if a = 1, then a^3 = 1^3 = 1, -a^3 = -1, and (-a^3)^2 = (-1)^2 = ...? ;)
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1 replies | 42 view(s)
10-17-2018,
05:49 PM
stapel
replied to a thread
Data Storage
in
Math Odds & Ends
What are "T", "L", and "X"? What formulas are you supposed to be using? Within what context (math class, math topic, level of study) did this...
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3 replies | 168 view(s)
10-14-2018,
07:12 PM
stapel
replied to a thread
Function help! Given f(x) = 3k+2, find k so lim x->6 f(x) = f(6)
in
Calculus
What is the limit, as x approaches 6, of F(x)? (You can find this value by taking the limit, as x -> 6, of the top "rule" for the function.) Set...
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9 replies | 284 view(s)
10-14-2018,
06:44 PM
stapel
replied to a thread
Data Storage
in
Math Odds & Ends
The images are too small to read. Please reply with the typed-out text or else better images. Either way, please include a clear listing of your...
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3 replies | 168 view(s)
10-04-2018,
05:32 PM
stapel
replied to a thread
help me please
in
Intermediate/Advanced Algebra
The text in the (sideways) image is too small for me to read. Sorry.
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4 replies | 184 view(s)
10-04-2018,
05:28 PM
stapel
replied to a thread
Help please w/ "For real x_i s.t. 0 < x_1 <= x_2 <=...<= x_n, n>=2, & 1/(1+x_1) + ...
in
Intermediate/Advanced Algebra
By "underlined sum", do you mean "circled portion of question 7"? When you reply, please include a clear listing of your thoughts and efforts so...
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9 replies | 293 view(s)
10-03-2018,
02:18 PM
stapel
replied to a thread
Continuous Function over its natural domain (for f(x)=1/x, but not for g(x)=1/x^2 ??)
in
Calculus
But, thinking of myself as a student encountering these terms and concepts for the first time, I think I'd find this presentation very confusing!...
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5 replies | 165 view(s)
10-03-2018,
11:10 AM
stapel
replied to a thread
Sigmoid (prime) unclear (Beginner): neural networks
in
Calculus
Moved. ;)
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6 replies | 272 view(s)
10-03-2018,
11:02 AM
stapel
replied to a thread
How do I factor 4x^2+18x-10? Can this be factored or not?
in
Intermediate/Advanced Algebra
Why not? That method says that you need factors of (2)(-5) = -10 that will add up to +9. Since you're multiplying to a negative, one factor will be...
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6 replies | 360 view(s)
10-03-2018,
10:51 AM
stapel
replied to a thread
Infinite series and partial sums: sum[n=1,infty] 1/n^{19/17}
in
Advanced Math
I've converted the (fairly small) image into mathematical formatting. You can do the same by using the LaTeX tool that this forum accepts (here). ...
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1 replies | 181 view(s)
10-03-2018,
10:42 AM
stapel
replied to a thread
Figuring out how much I must send given deductions
in
Finance/Business Math
Try using what you learned in high-school algebra. (I'll use "Ts" for "Total sent" and "St" for "Sum total". I'll also write "0.5%" as "0.005".) ....
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2 replies | 186 view(s)
09-29-2018,
02:41 PM
stapel
replied to a thread
quadratic equation: I factor as 6x^2 + x - 2, but book says (2x - 1)(3x + 2)
in
Beginning Algebra
If you use a more standard method (that is, by doing the actual factorization process, rather than working backwards from the Quadratic Formula),...
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13 replies | 806 view(s)
09-25-2018,
12:54 PM
stapel
replied to a thread
How to determine which one is greater between the two?
in
Arithmetic
What is a "two 30"? :confused:
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15 replies | 585 view(s)
09-25-2018,
12:10 PM
stapel
replied to a thread
“Show that n^4-n^3+n^2-n is divisible by 2 for all positive integers n.”
in
Calculus
Since you are not the person working on this exercize, this may be at least part of the issue. So please have your "crush" reply with his/her...
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7 replies | 622 view(s)
09-25-2018,
12:04 PM
stapel
replied to a thread
velocity function help: how do you solve s = 100t/(t + 1)
in
Calculus
Did Subhotosh Khan guess correctly, that "s" is the position, as a function of time "t"? And that, by "solving this function", you meant "find this...
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7 replies | 385 view(s)
09-25-2018,
12:00 PM
stapel
replied to a thread
Please help with integration: ...Show thatL(P, f′) ≤ f(b) − f(a).
in
Calculus
What did you get, when you wrote out what the MVT says in this situation, as suggested? Please be complete. Thank you! ;)
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3 replies | 223 view(s)
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