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Yesterday,
11:33 PM
Dr.Peterson
replied to a thread
did I sold this correctly?
in
Intermediate/Advanced Algebra
What is the topic of the chapter? What is the name of the book? Was there any heading to the group of exercises this was in -- challenge problems?...
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7 replies | 44 view(s)
Yesterday,
11:28 PM
Dr.Peterson
replied to a thread
p(x)y^n + q(x)y^w = c
in
Differential Equations
Well, no, you can't just see that you are supposed to solve for y; All you have shown is an equation, which could be used in many different ways....
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1 replies | 12 view(s)
Yesterday,
10:33 PM
allegansveritatem
replied to a thread
did I sold this correctly?
in
Intermediate/Advanced Algebra
I guess there could be more than two, but that is what I got and it is also what the key at the back of my text book gives as the correct solution...
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7 replies | 44 view(s)
Yesterday,
10:23 PM
allegansveritatem
replied to a thread
did I sold this correctly?
in
Intermediate/Advanced Algebra
No, there was no introduction to this type of problem in the text. I looked high and low in the chapter and could not find. I guess the...
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7 replies | 44 view(s)
Yesterday,
10:11 PM
Vol
started a thread
p(x)y^n + q(x)y^w = c
in
Differential Equations
I am really confused. What does this mean: p(x)y^n + q(x)y^w = c ? I can see you are supposed to solve for y. What I don't get is isn't y =...
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1 replies | 12 view(s)
Yesterday,
09:45 PM
JeffM
replied to a thread
did I sold this correctly?
in
Intermediate/Advanced Algebra
Your intuition that \alpha \in \mathbb R \text { and } \alpha^3 = 1 \implies \alpha = 1 can be proved true formally, so good job. Please note,...
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7 replies | 44 view(s)
Yesterday,
08:41 PM
mmm4444bot
replied to a thread
did I sold this correctly?
in
Intermediate/Advanced Algebra
Interesting. I asked two different Computer Algebra Systems (CAS) to symbolically solve this equation for x: (x^2 - 5x + 5)^3 = n Wolfram...
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7 replies | 44 view(s)
Yesterday,
08:29 PM
mmm4444bot
replied to a thread
did I sold this correctly?
in
Intermediate/Advanced Algebra
The left-hand side is a 6th-degree polynomial; it does not factor nicely. If we replace 1 with 2, 3, or 4, we will still get two Real solutions,...
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7 replies | 44 view(s)
Yesterday,
08:21 PM
mmm4444bot
replied to a thread
did I sold this correctly?
in
Intermediate/Advanced Algebra
The instruction: Solve for x This could be vague, unless you also received (unwritten) instructions to find Real solutions only. Your equation...
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7 replies | 44 view(s)
Yesterday,
08:13 PM
mmm4444bot
replied to a thread
Cut up Crypt?
in
Math Odds & Ends
Ya got it! Answer = HASHED Chopped = direct owns = HAS hed = HED
see more
9 replies | 115 view(s)
Yesterday,
08:11 PM
mmm4444bot
replied to a thread
Why something 'power' zero is one like a⁰ = 1?
in
Beginning Algebra
That's a good example; it shows one instance of how the definition (30=1) fits nicely with other properties of exponents because: 32 ͏∙ 3-2 = 32-2...
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7 replies | 107 view(s)
Yesterday,
08:00 PM
allegansveritatem
started a thread
did I sold this correctly?
in
Intermediate/Advanced Algebra
This problem is from one of those listed at the end of a chapter on solving quadratic equations by factoring. Presented below is the only way I could...
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7 replies | 44 view(s)
Yesterday,
07:53 PM
Denis
replied to a thread
Cut up Crypt?
in
Math Odds & Ends
Ya ya....I knew all dat! SO: HA(ve)SHED ? If so, why? ...or is hashed not the solution?
see more
9 replies | 115 view(s)
Yesterday,
07:49 PM
sinx
replied to a thread
Why something 'power' zero is one like a⁰ = 1?
in
Beginning Algebra
because 32=9, and 3-2=1/9 32*3-2=9/9=30=1.
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7 replies | 107 view(s)
Yesterday,
07:41 PM
mmm4444bot
replied to a thread
Why something 'power' zero is one like a⁰ = 1?
in
Beginning Algebra
Thank you!! Everytime I see or hear somebody say something like, "x^2 is x multiplied by itself two times", something inside me cringes. heh ...
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7 replies | 107 view(s)
Yesterday,
07:25 PM
sinx
replied to a thread
Relative Velocity
in
Calculus
(i) the plane will have to fly northeast to go due east. That is your angle.
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2 replies | 59 view(s)
Yesterday,
07:15 PM
mmm4444bot
replied to a thread
Cut up Crypt?
in
Math Odds & Ends
Hello Denis. This is a tutoring web site; we ask that students explain why they're stuck, so that we can determine where to begin helping. Please...
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9 replies | 115 view(s)
Yesterday,
07:12 PM
sinx
replied to a thread
Ideal Gas Law Related Rates
in
Calculus
PV=nRT in both cases (all cases involving ideal gas law). For both questions, solve the equation for P, i.e. P=/V. taking the derivative of both...
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5 replies | 103 view(s)
Yesterday,
06:53 PM
mmm4444bot
replied to a thread
Solving x + lg x = a
in
Intermediate/Advanced Algebra
This equation cannot be solved for x algebraically. x is an algebraic function, and log2(x) is a transcendental function. When we create new...
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1 replies | 40 view(s)
Yesterday,
04:30 PM
sinx
replied to a thread
Cereal Problem
in
Calculus
how would you calculate the volume of a hemisphere, as a summation of circular areas?
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2 replies | 82 view(s)
Yesterday,
04:27 PM
robbiemcleod56
replied to a thread
Need help writing a universal equation involving time and stepping rates.
in
Finance/Business Math
I’m using a mix of PHP and JavaScript. The JavaScript to to display the actual timers, counting up from the timestamp retrieved from the database,...
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21 replies | 707 view(s)
Yesterday,
12:54 PM
HallsofIvy
replied to a thread
Why something 'power' zero is one like a⁰ = 1?
in
Beginning Algebra
Another way of looking at it: For n a positive integer, x^n is defined as "x multiplied by itself n times". That is, x^3= x\cdot x\cdot x. ...
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7 replies | 107 view(s)
Yesterday,
12:50 PM
Denis
replied to a thread
Cut up Crypt?
in
Math Odds & Ends
Sgotta be HAShed ; own = has If so, please explain...
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9 replies | 115 view(s)
Yesterday,
12:31 PM
Denis
replied to a thread
Dotty crypt
in
Math Odds & Ends
Keerect! ....or: torn rag in fiber grain
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3 replies | 56 view(s)
Yesterday,
12:12 PM
apple2357
replied to a thread
y^2 = (x+3)^2
in
Intermediate/Advanced Algebra
Thanks for your thoughts all!
see more
5 replies | 101 view(s)
Yesterday,
11:49 AM
Crazy
started a thread
Solving x + lg x = a
in
Intermediate/Advanced Algebra
If lg is log base 2, how do I solve the following: x + lg x = a If a is 11 then the answer is 8 (8 + lg 8 = 8 + 3 = 11) but how do I solve...
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1 replies | 40 view(s)
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