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Denis
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Denis
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Join Date
02-17-2004
Last Activity
Today
12:09 PM
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Yesterday,
10:37 PM
Denis
replied to a thread
Help Finding Perfect Square Inequalities Practice Problems
in
Intermediate/Advanced Algebra
HOKAY...you buy him some paper...
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9 replies | 72 view(s)
Yesterday,
01:21 PM
Denis
replied to a thread
Help Finding Perfect Square Inequalities Practice Problems
in
Intermediate/Advanced Algebra
You don't have a pencil?
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9 replies | 72 view(s)
Yesterday,
01:19 PM
Denis
replied to a thread
Help Finding Perfect Square Inequalities Practice Problems
in
Intermediate/Advanced Algebra
AGREE...good advice!!
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9 replies | 72 view(s)
10-14-2018,
10:02 PM
Denis
replied to a thread
Bedmas Questions: Why does (3*5*10)/3 =/= 3*3^-1 * 5*3^-1 * 10*3^-1
in
Arithmetic
Are you a student attending math classes?
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4 replies | 142 view(s)
10-14-2018,
03:50 PM
Denis
replied to a thread
Induction problem: Company ships sandwiches in boxes of 3 or 5 each.
in
Intermediate/Advanced Algebra
Google "chicken nuggets math"
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4 replies | 105 view(s)
10-14-2018,
02:48 PM
Denis
replied to a thread
Net present value (NPV), annual equivalent (AE): investor has 2 alternative projects
in
Finance/Business Math
Well, hard to help if we don't know "where you're at". Can you answer this: If you deposit $5000 now, then $1000 annually for 5 years, how much...
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1 replies | 89 view(s)
10-11-2018,
11:31 PM
Denis
replied to a thread
Segment Problem: Y is between X and Z, find XY. XZ=26 and XY = 3x+2.
in
Geometry and Trig
X (3x+2) Y (26-3x-2) Z If that's what the intent is, then EASY...
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2 replies | 139 view(s)
10-11-2018,
11:22 PM
Denis
replied to a thread
Simplify: Xt = Xt-1 [1- (1/n-t) - r]
in
Intermediate/Advanced Algebra
97% sure a "formula" not possible. If one is possible, I'm sure DrP and/or Jeff will step in and shame me :-P
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11 replies | 308 view(s)
10-11-2018,
05:46 PM
Denis
replied to a thread
Simplify this equation: -(t - 3)^2 + 6(t - 3) - 11
in
Beginning Algebra
If the 1st term is kinda confusing you, pretend the leading - sign ain't there: (t - 3)^2 = (t - 3)*(t - 3) = t^2 - 6t + 9 Now multiply by -1:...
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7 replies | 200 view(s)
10-11-2018,
08:42 AM
Denis
replied to a thread
Simplify: Xt = Xt-1 [1- (1/n-t) - r]
in
Intermediate/Advanced Algebra
So, in this example, the formula would give -15.73? a = 10000 r = .02 t = 10 b = ? (-15.73)
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11 replies | 308 view(s)
10-11-2018,
08:33 AM
Denis
replied to a thread
Monthly Interest Payments, if the interest rate is 18% per year
in
Finance/Business Math
...and my grand-mother runs the mile under 4 minutes:rolleyes:
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6 replies | 167 view(s)
10-10-2018,
07:21 PM
Denis
replied to a thread
Monthly Interest Payments, if the interest rate is 18% per year
in
Finance/Business Math
yes...whatever... WHY did you ask such a question to start with?
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6 replies | 167 view(s)
10-10-2018,
05:14 PM
Denis
replied to a thread
Simplify: Xt = Xt-1 [1- (1/n-t) - r]
in
Intermediate/Advanced Algebra
Soooo...what we have is the equivalent of a loan being repaid using 2 "strange payments!". Like: N PAYMENT1 PAYMENT2 BALANCE 0 ...
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11 replies | 308 view(s)
10-09-2018,
08:25 PM
Denis
replied to a thread
Simplify: Xt = Xt-1 [1- (1/n-t) - r]
in
Intermediate/Advanced Algebra
The example I gave you will look like this: n interest balance 0 1000.00(X0) 1 10.00 1010.00 2 10.10 1020.10 3 ...
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11 replies | 308 view(s)
10-09-2018,
05:11 PM
Denis
replied to a thread
A rebus
in
Math Odds & Ends
Hint: r---- a l----- h---
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1 replies | 153 view(s)
10-09-2018,
05:10 PM
Denis
replied to a thread
Cryptic Regards?
in
Math Odds & Ends
hook? ok = alright can't explain "ho"
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3 replies | 226 view(s)
10-09-2018,
05:08 PM
Denis
replied to a thread
Cryptic Thread?
in
Math Odds & Ends
thread? to thread one's way, as through a passage or between obstacles
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3 replies | 219 view(s)
10-09-2018,
04:48 PM
Denis
replied to a thread
Simplify: Xt = Xt-1 [1- (1/n-t) - r]
in
Intermediate/Advanced Algebra
Hmmmm.....sure looks strange... Here's a financial formula that yours looks a bit like: f = p*(1+ r)^n where: f = future value ..... your Xt p...
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11 replies | 308 view(s)
10-09-2018,
12:49 PM
Denis
replied to a thread
Monthly Interest Payments, if the interest rate is 18% per year
in
Finance/Business Math
I always wonder how you get your problems KWF! 500.00 * .18 = 90.00 499.99 * .18 = 89.9982 So borrow 500 and pay 1 cent when you pick up the...
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6 replies | 167 view(s)
10-09-2018,
09:25 AM
Denis
replied to a thread
Simplify: Xt = Xt-1 [1- (1/n-t) - r]
in
Intermediate/Advanced Algebra
Is 1/n-t ok or should it be 1/(n-t) What does the equation represent: a financial formula? Like n = number of periods, r = interest rate, t =...
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11 replies | 308 view(s)
10-08-2018,
03:45 PM
Denis
started a thread
A rebus
in
Math Odds & Ends
h.ell h.ell H.ELL H.ELL (4 words) Disregard the .'s
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1 replies | 153 view(s)
10-07-2018,
10:21 PM
Denis
replied to a thread
Solve : x^101 + x^52 + x^50 + x^2 - 1 = 0
in
Math Odds & Ends
Yikes!!
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4 replies | 198 view(s)
10-07-2018,
08:12 PM
Denis
replied to a thread
Cryptic Regards?
in
Math Odds & Ends
No hints???????????
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3 replies | 226 view(s)
10-07-2018,
08:11 PM
Denis
replied to a thread
Cryptic Thread?
in
Math Odds & Ends
No hints???????????????
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3 replies | 219 view(s)
10-07-2018,
06:35 PM
Denis
replied to a thread
Help me solve please
in
Intermediate/Advanced Algebra
Yep...that works; nice catch Doc!
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4 replies | 111 view(s)
10-07-2018,
06:13 PM
Denis
replied to a thread
Solve : x^101 + x^52 + x^50 + x^2 - 1 = 0
in
Math Odds & Ends
http://www.wolframalpha.com/input/?i=X%5E101+%2B+X%5E52+%2B+X%5E50+%2B+X%5E2+-+1+%3D+0
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4 replies | 198 view(s)
10-07-2018,
06:05 PM
Denis
replied to a thread
did I solve this correctly? I get x = 1, 4 for (x^2 - 5x + 5)^3 = 1
in
Intermediate/Advanced Algebra
You mean x^6 - 125x^3 + 125, right? Anyhow, that only works if x = 5
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18 replies | 758 view(s)
10-07-2018,
04:09 PM
Denis
replied to a thread
Help me solve please
in
Intermediate/Advanced Algebra
WHAT is that? x = √3 * (p+q) + √3 * (p-q)? If so, try it using p=5 and q=3 : what do you get for y ?
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4 replies | 111 view(s)
10-06-2018,
01:45 PM
Denis
replied to a thread
Where do they get this number? Recognizing Proportional Relationships
in
Arithmetic
Hard to tell what you're asking.... Anyhoooo: 3/2/36 = (3/2) / (36/1) = (3/2) * (1/36) = (3*1) / (2*36) = 3 / 72 = 1 / 24
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3 replies | 230 view(s)
10-05-2018,
10:54 PM
Denis
replied to a thread
Wet crypt
in
Math Odds & Ends
Yepper!!
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2 replies | 166 view(s)
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About Denis
Basic Information
About Denis
Location:
Ottawa, Ontario
Interests:
puzzles
Occupation:
retired
Signature
I'm a man of few words...but I use 'em often!!
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514
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General Information
Last Activity
Today
12:09 PM
Join Date
02-17-2004
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