Tab Content
• 10-12-2018, 01:39 PM
That's an arcsin(), not a sin(). What are you squaring? Are we to prove the equivalence in 1? Typically, one would: 1) Draw a right triangle....
2 replies | 161 view(s)
• 10-12-2018, 01:30 PM
1) Your limits can't use the same variable as your argument. 'x' means two different things. Fix that. 2) Why are we doing sines and confusing...
14 replies | 334 view(s)
• 10-09-2018, 09:09 PM
The angle is given in the problem statement. Now what?
1 replies | 159 view(s)
• 10-09-2018, 09:02 PM
1) I cannot tell what it is you are demonstrating. "sin(pi) = 0.54..." doesn't mean anything. 2) Who says arcsin(x) = pi is "impossible"? Besides...
5 replies | 139 view(s)
• 10-09-2018, 08:44 PM
As always, "the next in the series" question is hopelessly conceived. There are infinitely many answers to ANY set of finite beginnings. For this...
7 replies | 212 view(s)
• 10-09-2018, 08:36 PM
"...makes sense..." -- Not really. One guess... In this mysterious arithmetic, does 2-1-1 suggest 2+1+1 = 4 or 4% = 4 pph(undred) = 40...
2 replies | 202 view(s)
• 10-08-2018, 03:04 PM
"doesn't seem right" is a big red flag. Be more careful. Be more systematic. 1) 2i 1 -1 -1 2) -1 3 2 (5-7i) Multiply #2 by 2i 1) 2i 1...
1 replies | 99 view(s)
• 10-07-2018, 07:07 PM
An explanation including "x-variable" and "y-variable" indicates mechanical understanding of what you are doing. You later refer to "predictor" or...
1 replies | 64 view(s)
• 10-03-2018, 04:13 PM
Not everything is easily expressible as a nice function. Sometimes all you have is a map. It seems to me that we're demonstrating the graphical...
2 replies | 104 view(s)
• 09-30-2018, 10:36 AM
It has nothing to do with division. It is a matter of convenience, convention, and natural order. What does this number mean? 1084? You...
2 replies | 256 view(s)
• 09-28-2018, 09:25 PM
I hope you did not use that formula. That would be totally wrong. Try this one: lim h->0 / h
3 replies | 182 view(s)
• 09-28-2018, 09:22 PM
Use your hint, twice. 0.5 = C(0) = C_{0}\cdot e^{\lambda (0)} 15 = C(100) = C_{0}\cdot e^{\lambda (100)} See where that leads.
2 replies | 185 view(s)
• 09-24-2018, 08:31 PM
Ah! Didn't think of that even though that is how it reads. I had one additional regular payment.
25 replies | 1103 view(s)
• 09-24-2018, 04:54 PM
...not if it's proprietary and we're trying to steal IP.
25 replies | 1103 view(s)
• 09-24-2018, 03:17 PM
I've begun to believe, being moved upon by the spirit of something, that "4.07" is a flat charge of some sort, rather than an interest rate of any...
25 replies | 1103 view(s)
• 09-24-2018, 10:55 AM
It does help to have correct information. 1) The first two 30's are incorrect. The lump is not included in the Total Paid. 2) (1 +...
25 replies | 1103 view(s)
• 09-23-2018, 07:39 PM
What is the probability that all recruits will receive boots of an incorrect size?" Sometimes it helps to rethink... What is the probability...
9 replies | 343 view(s)
• 09-22-2018, 04:29 PM
m/s^-1 -- Are you SURE about this notation? You should have a standard setup for this sort of thing. It just means: x(t) = ˝gt^{2} + v_{0}t +...
2 replies | 204 view(s)
• 09-22-2018, 04:20 PM
1) Too small. Can't read it. 2) If this is foreign to you, why have you been given this problem? 3) If this is a Placement Test, you should get it...
2 replies | 149 view(s)
• 09-22-2018, 04:17 PM
"square" No. That's only if it's a 2. Vocabulary Words: 1) Exponent 2) Subscript In actuarial notation, they mean about 10 other things,...
4 replies | 262 view(s)
• 09-21-2018, 05:55 PM
Please use the basic rules of logarithms. \log(a) + \log(b) = \log(a\cdot b) a\cdot\log(b) = \log\left(b^{a}\right)
2 replies | 202 view(s)
• 09-20-2018, 07:03 PM
The real question is, what is it that you are trying to do? Why would the "Interest Rate" be substantially different from the "APR"? That makes no...
25 replies | 1103 view(s)
• 09-18-2018, 05:14 PM
Failing to do it is called "error". It is not a valid step in any list I ever have encountered. It is a device to remember that equivalence must...
4 replies | 289 view(s)
• 09-18-2018, 05:11 PM
Can it be inside? I would extend all four sides of the square, defining 8 external regions. this gives only three things to do, depending on...
4 replies | 254 view(s)
• 09-17-2018, 10:21 PM
I stand by #3. "Circumference" can be either the distance around something, not necessarily a circle, or the enclosing boundary itself.
6 replies | 341 view(s)
• 09-17-2018, 08:38 PM
1) line SEGMENT 2) Definition. A circumference must enclose something. 3) Sometimes, the circumference may refer to the linear distance only, and...
6 replies | 341 view(s)
• 09-17-2018, 05:25 PM
If only there were a way to know what the machine wants. Maybe add units? Maybe two decimal places?
6 replies | 261 view(s)
• 09-17-2018, 04:36 PM
Come now, Elissa. Math doesn't hate you. :-) In this case, you have reasoned it out nicely. You need just one more clue from the problem...
3 replies | 185 view(s)
• 09-17-2018, 10:40 AM
Rather than argue with the hint, why not think about what the Central Limit Theorem does an give the question more thought? The Central Limit...
2 replies | 176 view(s)
No More Results

Location:
USA
Occupation:
Actuary

#### Signature

"Unique Answers Don't Care How You Find Them." - Many may have said it, but I hear it most from me.

#### Statistics

Total Posts
9,464
Posts Per Day
1.92
##### General Information
Last Activity
10-12-2018 07:54 PM
Join Date
04-12-2005
Referrals
0