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• Today, 12:21 PM
Have you considered substituting the expression for "Inflation" from the second equation into "Inflation" from the first equation?
6 replies | 106 view(s)
• Today, 12:18 PM
You should try whatever methods are available to you to solve a system of equations. In this case, your predecessor seem of have produced, via...
3 replies | 45 view(s)
• Today, 12:10 PM
If you have only one, it's a "die". Independent Events. Does any roll depend on any other roll? ^(1500) -- One must fail EVERY TIME.
1 replies | 26 view(s)
• Today, 12:06 PM
Let's first assume that F(x) is the same as f(x). Normally, this is exceptionally bad form. Don't change letters to mean the same thing. What we...
2 replies | 46 view(s)
• Today, 12:02 PM
Compounding. It's a silly term.
6 replies | 121 view(s)
• Yesterday, 11:56 AM
There is a whole chapter on this in your book. I hope you have not been sleeping in class. Anyway... Consider a Right Circular Cylinder. It's...
2 replies | 116 view(s)
• Yesterday, 11:41 AM
The answer is, "maybe". First, it behooves one to write ALL the solution and THEN pick the ones that are needed. No need to do the surgery up...
5 replies | 142 view(s)
• 12-11-2017, 09:00 PM
1) cos(2x) = 1/2 has more than one solution, even on (-pi/2,pi/2). This is a natural result of the circle definition of the cosine. You must find...
5 replies | 142 view(s)
• 12-11-2017, 08:51 PM
It is very, very difficult for you to show your work if you just copy it from someone else. You MUST have SOME idea or it is horribly unfair for you...
4 replies | 115 view(s)
• 12-11-2017, 11:17 AM
In order for anyone to check your work, you will have to show some work. Just dropping your final answer doesn't help anyone. What methods did...
1 replies | 87 view(s)
• 12-10-2017, 08:58 PM
No, I think you have it. There are many interesting methods for finding numerical solutions where your algebraic efforts prove insufficient. Some...
1 replies | 91 view(s)
• 12-09-2017, 12:09 AM
I think I can tell you what is going wrong. 1) You have too much faith in the answers in they book. They are created by humans. They are...
2 replies | 105 view(s)
• 12-09-2017, 12:03 AM
It's not clear to me what is wanted. You say there are six numbers, then you speak of "0" and "above 6", which are not in the set of numbers you...
8 replies | 333 view(s)
• 12-08-2017, 12:31 PM
The methods you suggested should work just fine. Please demonstrate your efforts. You are given a = 3 - b. Why not substitute that and cut down...
2 replies | 82 view(s)
• 12-08-2017, 07:14 AM
Pick any 2x2 matrix and play with it a bit. Expand your exploration from there.
5 replies | 272 view(s)
• 12-07-2017, 05:42 PM
I knew I should have stayed in bed, this morning. I better check everything else I did all day... Maybe I didn't get out of bed. Hmmm...
8 replies | 298 view(s)
• 12-07-2017, 02:34 PM
We're using the quotient of simple, real-valued polynomials, right? Is there another definition in "Intermediate/Advance Algebra"? No example...
8 replies | 298 view(s)
• 12-07-2017, 02:29 PM
Fair enough. Now the answer to my determinant question...
5 replies | 272 view(s)
• 12-07-2017, 09:24 AM
You have done well to use Central Angles to solve the first part. Now, draw the rectangle and switch your thinking to Inscribed Angles. Hint:...
1 replies | 110 view(s)
• 12-07-2017, 07:09 AM
Two things: 1a) Make the denominator 0 (zero). These are POTENTIAL vertical asymptotes. 1b) If the numerator is also zero (0) for the same...
8 replies | 298 view(s)
• 12-06-2017, 09:58 PM
I can't help you with the drawing, but you have... z = 1 - x -- That's a nice lean-to. y = 1 - x^2 -- That's a nice parabolic cap. You have...
1 replies | 101 view(s)
• 12-06-2017, 06:50 PM
Let's be clear. Please state what B' is. Notation isn't always uniform. Is |\lambda I - B| any different from |\lambda I - B'|
5 replies | 272 view(s)
• 12-06-2017, 02:43 PM
There are basic principles you must understand. Quiz/Refresher. s(t) = 2 + 20t - 5t^2 -- This describes the height of the ball. s(0) = What?...
4 replies | 210 view(s)
• 12-06-2017, 02:34 PM
Rule of Thumb: Concepts are more important than formula memorization - almost always. Rule of Word Problem: If you don't know what something is,...
4 replies | 222 view(s)
• 12-06-2017, 02:31 PM
What logarithm rules have you applied to the expression?
2 replies | 80 view(s)
• 12-06-2017, 07:03 AM
You are thinking correctly. t = 1 ==> 0.3*4 = 1.2 -- That's no good. You cannot have a 120% chance of Death. On the other hand, that makes the...
3 replies | 148 view(s)
• 12-05-2017, 11:28 PM
Interesting. I think I could go either way, but the question is poorly worded. 1) What portion of "the sandwiches" remains? 5/8 2) What portion...
12 replies | 621 view(s)
• 12-05-2017, 09:47 PM
Usually, a little transformation will do the trick on this sort. 2^{N} - \dfrac{1}{2^{N}} = C 2^{2N} - 1 = C\cdot 2^{N} Do you see it, yet?
3 replies | 225 view(s)
• 12-05-2017, 09:41 PM
Harold lives a whole year after he dies? What have you done, so far? Note: "end of the year" is good. It's a nice, discrete problem. We don't...
3 replies | 148 view(s)
• 12-05-2017, 09:27 PM
Well, there you have it. Now, what's all this about it being a parabola and struggling with fractions? Good work.
9 replies | 273 view(s)
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