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Denis
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Denis
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Join Date
02-17-2004
Last Activity
Yesterday
11:40 PM
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Denis
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Yesterday,
11:32 PM
Denis
replied to a thread
Angular Sizing with Reference Objects in Image
in
Geometry and Trig
You've got me running in circles... One question for now: why d'heck is it a "person" that's falling?
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5 replies | 74 view(s)
Yesterday,
08:30 PM
Denis
replied to a thread
length of segment in parallelogram: BC = 4 cm , CD = 9 cm then what is AP ?
in
Geometry and Trig
Well Saura, were you able to "see" that AD = AP?
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4 replies | 139 view(s)
Yesterday,
10:57 AM
Denis
replied to a thread
Gambling Phrase
in
Arithmetic
Means "if you win I'll give you ten, else you give me five..." or: "my ten to your five..."
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2 replies | 57 view(s)
11-16-2017,
08:27 PM
Denis
replied to a thread
WTH is up with Prime Numbers? What purpose do primes serve? In my 40s; really wanna k
in
Arithmetic
Don't feel bad buddy: I was taught Latin in H.S. :mad:
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5 replies | 103 view(s)
11-16-2017,
01:11 PM
Denis
replied to a thread
Simple annual investment: express total accumulated amt as fcn of t
in
Finance/Business Math
What does "simple interest mean"? NO compounding? Example: If principal = 1000 and rate = 12%, then interest = 1000*.12 =120 annually, so worth...
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5 replies | 117 view(s)
11-16-2017,
01:04 PM
Denis
replied to a thread
Probability prediction (that investment will go bankrupt in the next year)
in
Finance/Business Math
Whadda heck does "refresh" mean here? ...and: are you serious:confused:
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3 replies | 87 view(s)
11-16-2017,
12:46 PM
Denis
replied to a thread
length of segment in parallelogram: BC = 4 cm , CD = 9 cm then what is AP ?
in
Geometry and Trig
Assume ABCD is a rectangle: what is BP's length then?
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4 replies | 139 view(s)
11-15-2017,
08:37 AM
Denis
replied to a thread
Solve 4 + 3 / 4 + x - 1 / 4 = 1
in
Beginning Algebra
Multiply BOTH sides by 4. Keep in mind that * c = a + b
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2 replies | 101 view(s)
11-15-2017,
12:22 AM
Denis
replied to a thread
Cryptic clue (Nov.4)
in
Math Odds & Ends
professor = teacher, so prof = short teacher
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8 replies | 448 view(s)
11-14-2017,
10:25 AM
Denis
replied to a thread
Cryptic clue (Nov.13)
in
Math Odds & Ends
You get the ceegar!!
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2 replies | 132 view(s)
11-14-2017,
10:24 AM
Denis
replied to a thread
Cryptic clue (Nov.4)
in
Math Odds & Ends
You've lost me...answer = prof direct = short teacher for = pro French = f
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8 replies | 448 view(s)
11-14-2017,
10:18 AM
Denis
replied to a thread
Exercise with angle bisector: find x1, x2 explicitly as function of L, D and alpha
in
Geometry and Trig
Geeshhh...did you end up with a splitting headache ? :rolleyes:
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7 replies | 327 view(s)
11-13-2017,
02:04 PM
Denis
started a thread
Cryptic clue (Nov.13)
in
Math Odds & Ends
2 hits from screwball (7) hint: no e in answer
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2 replies | 132 view(s)
11-13-2017,
02:01 PM
Denis
replied to a thread
Cryptic clue (Nov.4)
in
Math Odds & Ends
Big clue: p--f(rench)
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8 replies | 448 view(s)
11-13-2017,
12:49 PM
Denis
replied to a thread
Solving a cubic equation: 2x3 - 3x - 5
in
Intermediate/Advanced Algebra
Ahhhh, for pete's sake...!!:rolleyes:
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10 replies | 442 view(s)
11-12-2017,
08:15 PM
Denis
replied to a thread
Find possible values of x so (5^x-2^x+3)^3 = (5^x-5)^3 - (2^x-8)^3
in
Intermediate/Advanced Algebra
Worth a good laugh; look at "expanded" form: http://www.wolframalpha.com/input/?i=(5%5Ex-2%5Ex%2B3)%5E3%3D(5%5Ex-5)%5E3-(2%5Ex-8)%5E3
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2 replies | 131 view(s)
11-11-2017,
05:01 PM
Denis
replied to a thread
formulate linear equations: A company produces two types of juices: orange & pineappl
in
Intermediate/Advanced Algebra
That's somewhat ambiguous. Does it mean: determine maximum number of cases?
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4 replies | 157 view(s)
11-11-2017,
02:12 PM
Denis
replied to a thread
Calculating Selling Price Based on ROI, Fees & Commission
in
Finance/Business Math
Adam, you got me confused (easily done!). 6.50 is 30% of 21.67 But me no see no 21.67 nowhere :confused: Can you please clarify...merci beaucoup.
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2 replies | 150 view(s)
11-11-2017,
01:52 PM
Denis
replied to a thread
Integer equations: find numbers not hit by 11x+4, 12x+11, 17x+12, 19x+1
in
Beginning Algebra
Whadda heck d'you mean :confused: I see no equations. Is x an integer > 0?
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5 replies | 174 view(s)
11-10-2017,
03:13 PM
Denis
replied to a thread
basic premium: $20; each add'l $1000 coverage @ $0.30; how much coverage for $95?
in
Finance/Business Math
How many "30 cents" is there in 95-20=75 "dollars"?
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4 replies | 227 view(s)
11-10-2017,
03:09 PM
Denis
replied to a thread
I made a math problem for my boyfriend...
in
Math Odds & Ends
Well, it all looks like a joke to me!!
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3 replies | 279 view(s)
11-10-2017,
08:43 AM
Denis
replied to a thread
Need an intuitive explanation of what is actually going on with this question
in
Pre-Algebra
Strings total 6+5+4 = 15 Look at it as "string material" To make 2 equal strings: 15/2 = 7.5 It's that simple :cool:
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5 replies | 253 view(s)
11-09-2017,
11:51 PM
Denis
replied to a thread
Solving Rational Equations: 3y/3y+9 + 8y+16/2y+6 = y-4/y+3
in
Intermediate/Advanced Algebra
Change the (y-4) to (y+4) and try again; you should get y = -1
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26 replies | 750 view(s)
11-09-2017,
04:15 PM
Denis
replied to a thread
Proving a^2*b + a*b^2 + b^3 cannot yield a cubed number
in
Intermediate/Advanced Algebra
a = 36, b = 2 a^2*b + a*b^2 + b^3 = 2744 2744^(1/3) = 14 oh oh! Works if a = 18*b
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2 replies | 100 view(s)
11-09-2017,
10:59 AM
Denis
replied to a thread
Finding the future value F of the following ordinary annuities.
in
Finance/Business Math
TK, that should be Mr. Denis, Esq :cool: IEvolve, you can check your answers through a simple looper program showing each calculation. As...
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5 replies | 195 view(s)
11-09-2017,
12:07 AM
Denis
replied to a thread
Finding the future value F of the following ordinary annuities.
in
Finance/Business Math
"for 1 month" not required... a = 20 n = 30 i = .20/365 First 4 are correct.
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5 replies | 195 view(s)
11-08-2017,
09:13 PM
Denis
replied to a thread
Solving a System of Multi-variable Polynomials: x^2+4y^2-8y=4, y^2-2y-8x-16=0
in
Intermediate/Advanced Algebra
Multiply 2nd equation by -4, then add the 2 equations; this'll lead to x^2 + 32x + 60 = 0 Solve for x, then substitute results to solve for y.
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3 replies | 179 view(s)
11-08-2017,
02:57 PM
Denis
replied to a thread
Exercise with angle bisector: find x1, x2 explicitly as function of L, D and alpha
in
Geometry and Trig
Here's how the "angle bisector" works: Triangle ABC: a=BC, b=AC, c=AB Angle bisector=CD, so D on AB Let AD = x, then BD = c-x x = bc / (a + b)...
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7 replies | 327 view(s)
11-07-2017,
09:10 PM
Denis
replied to a thread
Exercise with angle bisector: find x1, x2 explicitly as function of L, D and alpha
in
Geometry and Trig
Sorry, don't know what you mean; hopefully someone else will be able to help...
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7 replies | 327 view(s)
11-07-2017,
05:52 PM
Denis
replied to a thread
Emulating multiple purchases within one expression.
in
Finance/Business Math
Huh? Price goes up if you buy more than 1:confused: I'm missing something fer sure, fer sure... Can you show what happens with this 250 example...
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8 replies | 337 view(s)
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About Denis
Basic Information
About Denis
Location:
Ottawa, Ontario
Interests:
puzzles
Occupation:
retired
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I'm just an imagination of your figment !
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Last Activity
Yesterday
11:40 PM
Join Date
02-17-2004
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