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• 11-16-2017, 04:39 PM
You may have heard that modern computer security depends upon the difficulty in factoring large numbers. Much of computer security is based on...
5 replies | 121 view(s)
• 11-16-2017, 04:34 PM
Are you not familiar with logarithms? If not, then what method has your class covered for this sort of exercise? Are you supposed to do a regression...
6 replies | 152 view(s)
• 11-16-2017, 04:31 PM
I think the search term for the sort of partial sphere thing you're considering is "spherical cap". Perhaps relate that sort of formula to the...
6 replies | 117 view(s)
• 11-16-2017, 04:24 PM
No; fractions never work this way! Doing the above is like saying the following: . . . . .1\, =\, \dfrac{2}{2}\, =\, \dfrac{2}{1\, +\, 1}\, ....
2 replies | 83 view(s)
• 11-16-2017, 04:03 PM
I'm glad to hear that you've successfully answered parts (a) and (b). What were your results for these? Since you've "tried to solve" part (c),...
3 replies | 104 view(s)
• 11-16-2017, 03:59 PM
I would take this as meaning "the height of the ceilings on this floor", so they're kinda high, at about thirteen feet. This would be the "grand...
3 replies | 104 view(s)
• 11-16-2017, 03:49 PM
So, when you solved the equation "I = Prt" for "t=", you got t = I/(Pr). That's a start. Now let's return to what I asked you before: To answer...
5 replies | 129 view(s)
• 11-16-2017, 03:45 PM
Which methods have you covered recently in class? Which do you feel is most likely to be useful here? How far have you gotten in attempting to apply...
3 replies | 104 view(s)
• 11-15-2017, 07:23 PM
At which point are you stuck? How are you stuck? Finding intercepts is just algebra. (here) Where are you getting bogged down in the...
2 replies | 87 view(s)
• 11-15-2017, 07:07 PM
What is the simple-interest formula? What equation then would represent the ending total amount? When you solved this equation for "t=", what did...
5 replies | 129 view(s)
• 11-15-2017, 03:14 PM
I'm sorry, but we don't do that. Instead, we help students learn how to do "the working" themselves. If he averaged 83 points in each of the first...
3 replies | 127 view(s)
• 11-14-2017, 08:34 PM
All it means is that you start on one side, work your way down for a while, give up, and then start on the other side. You work your way down for a...
7 replies | 266 view(s)
• 11-14-2017, 08:07 PM
Unfortunately, we have learned from hard experience that trying to work through a "translator" who "doesn't speak the language" is doomed to failure....
2 replies | 114 view(s)
• 11-14-2017, 08:04 PM
What do you know about negative numbers, and even (like 2, 4, 6) versus odd (like 3, 5, 7) powers? What do even powers do to negative numbers, than...
6 replies | 222 view(s)
• 11-14-2017, 07:59 PM
So the actual exercise is more like the following? "Let A be a set, and let X be a subset of A having a cardinality of 2. Prove that, when the...
4 replies | 248 view(s)
• 11-14-2017, 07:52 PM
Which part of "the wording" "has thrown you off"? Which part, specifically, are you needing explained? When you reply, please include a clear...
2 replies | 82 view(s)
• 11-14-2017, 07:42 PM
What is the probability of getting any result? (Hint: Definition.) How many results are possible? (Hint: It's a coin.) What is the probability...
3 replies | 100 view(s)
• 11-14-2017, 07:31 PM
What is the "it" that is "displaying that it's incorrect"? How did "3/2 and 1" become "2pi, (1/6)pi, and (11/6)pi"? When you reply, please show your...
3 replies | 157 view(s)
• 11-14-2017, 07:24 PM
When you reply, please include a clear listing of your steps so far (from the given equation to what you "can get to"), along with definitions of the...
3 replies | 159 view(s)
• 11-14-2017, 07:03 PM
In your first image, I think you did something circular with the following identity: . . . . .\sin(x)\, =\, \dfrac{e^{ix}\, -\, e^{-ix}}{2i} I...
1 replies | 163 view(s)
• 11-11-2017, 02:14 PM
Then you've got loads of work that you can show us. Excellent! You are told the unknowns that you are supposed to find: the numbers of cases of...
4 replies | 162 view(s)
• 11-11-2017, 02:02 PM
Start by using what they've been teaching you in class (and what you learned back in middle- and high-school, about pre-algebra percents and...
2 replies | 157 view(s)
• 11-11-2017, 01:43 PM
You already have loads of step-by-step worked solutions in your book and in your class notes, so us doing this exercise for you isn't likely to make...
5 replies | 248 view(s)
• 11-11-2017, 12:09 PM
As suggested earlier, the first step will be to multiply out and simplify the given expression. Then you'll want to "equate coefficients". That is,...
5 replies | 248 view(s)
• 11-11-2017, 12:02 PM
So does that mean that your class has covered this material, but that you still have no idea how to get started, so you need lesson instruction? If...
4 replies | 164 view(s)
• 11-11-2017, 11:49 AM
Is the "2" that follows "n(n-1)" meant to be a multiplier, as written? Or is it meant to be a power, so the "(n-1)" is squared? Also, is it...
4 replies | 248 view(s)
• 11-10-2017, 07:09 PM
You posted this to "arithemetic", rather than to "pre-algebra" (for percentages) or "algebra" (for working with variables and equations). Have you...
2 replies | 260 view(s)
• 11-10-2017, 06:59 PM
This doesn't matter. The factoring method is the same. However, it might be more useful to apply the Quadratic Formula, when dealing with this sort...
3 replies | 183 view(s)
• 11-10-2017, 06:46 PM
"Help" with what? They gave you the plug-n-chug process (like here). You started by plugging "1" in. And... then what? Please be complete. Thank...
3 replies | 225 view(s)
• 11-10-2017, 06:43 PM
It probably couldn't understand your input...? :oops: As another helper noted, "the equation" is difficult to interpret. Do you mean either of...
3 replies | 257 view(s)
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