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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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Denis
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Yesterday,
12:43 PM
Denis
replied to a thread
Wrap angle and Length
in
Geometry and Trig
Hmmm....can't be easy if it's anything like: http://web.mit.edu/3.082/www/team1_f02/wrapangle.html
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3 replies | 65 view(s)
Yesterday,
09:55 AM
Denis
replied to a thread
Finding a point on a line (from drawing of house on hill)
in
Geometry and Trig
Those are all YOUR assumptions?! The 25 and 27 look more like angles than lengths... Can you post EXACTLY your teacher's original problem?
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12 replies | 301 view(s)
Yesterday,
07:59 AM
Denis
replied to a thread
Finding a point on a line (from drawing of house on hill)
in
Geometry and Trig
Hmmmm....what do "25" and "27" represent?
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12 replies | 301 view(s)
10-16-2017,
11:05 PM
Denis
replied to a thread
Absolute Value Function and its Properties
in
Intermediate/Advanced Algebra
Doug, you should sleep well after all that :twisted:
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3 replies | 125 view(s)
10-16-2017,
12:17 PM
Denis
replied to a thread
Q about roots of quadratic eqn: Given a, b, c are lengths of sides of triangle...
in
Intermediate/Advanced Algebra
Look buddy, this is getting ridiculous... Please read up on triangle inequality: https://en.wikipedia.org/wiki/Triangle_inequality ...then...
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17 replies | 470 view(s)
10-15-2017,
07:12 PM
Denis
replied to a thread
Multiplying by negative: don't understand why (x - 3)(x + 2) = (3 - x)(x + 2)
in
Intermediate/Advanced Algebra
Your (3 - x) should be -(3 - x)
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4 replies | 121 view(s)
10-15-2017,
07:08 PM
Denis
replied to a thread
Q about roots of quadratic eqn: Given a, b, c are lengths of sides of triangle...
in
Intermediate/Advanced Algebra
Try to draw a triangle with a+b = c
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17 replies | 470 view(s)
10-15-2017,
04:52 PM
Denis
replied to a thread
Reading lips
in
Math Odds & Ends
Trying to swallow flies :confused:
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2 replies | 78 view(s)
10-15-2017,
01:17 PM
Denis
replied to a thread
Fraction: simplify [(1-x)/x] * [ {(x-1)/(sqrt[x]+1)} /1]
in
Intermediate/Advanced Algebra
Hope you slept well Doug :rolleyes: hint: 1 - x = -(x - 1) .... get my drift?
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7 replies | 258 view(s)
10-15-2017,
12:28 PM
Denis
replied to a thread
Q about roots of quadratic eqn: Given a, b, c are lengths of sides of triangle...
in
Intermediate/Advanced Algebra
If your "friend" is not you, ask your friend to post the problem himself/herself, as Subhotosh asked you. If your friend is you, then please...
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17 replies | 470 view(s)
10-14-2017,
07:56 PM
Denis
replied to a thread
Difficulty in Exponential-solving for "X"
in
Intermediate/Advanced Algebra
Well, this is the OP's equation: ((1-(1-A)^(x*B*(1-C)))*(x*(1-C)*B) * D * M * (1-F)) + G + H - I*x >= 0 Let U = 1-A, V = 1-C, W = 1-F Then: *...
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12 replies | 411 view(s)
10-14-2017,
03:33 PM
Denis
replied to a thread
Wonderings of a foreign born.....
in
Math Odds & Ends
You forgot: why do we drive on parkways and park on driveways?
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2 replies | 181 view(s)
10-14-2017,
11:56 AM
Denis
replied to a thread
Please enlighten us! (splitting the bills related to a wedding)
in
Arithmetic
Hmmm....assuming you're serious: hotel: 4281.10 (owed to mother-in-law) dress:1700.50 (owed by mother-in law) 4281.10 - 1700.50 = 2580.60 :...
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3 replies | 230 view(s)
10-14-2017,
08:40 AM
Denis
replied to a thread
Cryptic clue (Oct.13)
in
Math Odds & Ends
Yepper! Is my answer to yours (a nice = acute) correct?
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5 replies | 251 view(s)
10-14-2017,
08:33 AM
Denis
replied to a thread
Difficulty in Exponential-solving for "X"
in
Intermediate/Advanced Algebra
Mark, that MVR5 version shows (1 - f)x Original shows (1 - f))
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12 replies | 411 view(s)
10-13-2017,
07:41 PM
Denis
replied to a thread
Cryptic clue (Oct.13)
in
Math Odds & Ends
No, not mixer. Direct = meeting place
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5 replies | 251 view(s)
10-13-2017,
07:36 PM
Denis
replied to a thread
Difficulty in Exponential-solving for "X"
in
Intermediate/Advanced Algebra
Ahhh...I see what you mean with (1-A)... Anyhow, not directly solvable... Don't think I've ever seen such a confusing equation:rolleyes: Can you...
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12 replies | 411 view(s)
10-13-2017,
03:48 PM
Denis
replied to a thread
Cryptic Halloween?
in
Math Odds & Ends
Acute ! Nice one.
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2 replies | 199 view(s)
10-13-2017,
03:45 PM
Denis
started a thread
Cryptic clue (Oct.13)
in
Math Odds & Ends
Meeting place for short drink (5)
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5 replies | 251 view(s)
10-13-2017,
12:34 PM
Denis
replied to a thread
Please Help w/ 8 Q's on unions, intersections of sets
in
Intermediate/Advanced Algebra
Did you read the rules? Homework not done here. Suggest you post each problem SEPARATELY, showing your work and where you're stuck. Then Sir S....
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1 replies | 86 view(s)
10-13-2017,
12:27 PM
Denis
replied to a thread
Difficulty in Exponential-solving for "X"
in
Intermediate/Advanced Algebra
Your equation seems to be overcomplicated; for instance, (1-(1-A)) is same as (1+A). To make a long story short: as example, 2^x + 3x - 28 = 0...
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12 replies | 411 view(s)
10-13-2017,
08:03 AM
Denis
replied to a thread
Cryptic Clatter?
in
Math Odds & Ends
No idea...perhaps scOTch ?
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3 replies | 242 view(s)
10-12-2017,
10:30 PM
Denis
replied to a thread
Spheres inside a cylinder
in
Geometry and Trig
Well buddy, at least you have good: horse sense noun phrase Good sense and shrewdness : horse sense needed before taking on something like...
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5 replies | 271 view(s)
10-12-2017,
09:30 AM
Denis
replied to a thread
Spheres inside a cylinder
in
Geometry and Trig
Hmmm...I get a headache just thinking of it! Silly suggestion: Get a cylindrical bowl, like:...
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5 replies | 271 view(s)
10-10-2017,
01:29 PM
Denis
replied to a thread
what is the sum of all natural number values of x such that 15*x = 45 ?
in
Arithmetic
Please clarify: you originally showed 45 as answer; typo?
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5 replies | 382 view(s)
10-09-2017,
07:18 PM
Denis
replied to a thread
factoring y^2 + xy - 2x^2
in
Intermediate/Advanced Algebra
Are you sure it's not 2x^2 + 3xy + y^2 ?
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8 replies | 499 view(s)
10-08-2017,
03:23 PM
Denis
replied to a thread
Solve T = x + y + z, z = 5000, y = 15000, x = 0.60 * T for T
in
Beginning Algebra
Correct, but your teacher may insist you show more "stuff", like: x = 14/0,7 x = 20 Google "solving equations with 1 unknown".
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14 replies | 943 view(s)
10-07-2017,
11:54 AM
Denis
replied to a thread
Find the profit: "Rajendra and Rehana own a business...."
in
Finance/Business Math
Hint: question can be simplified to: 2080 is 25% of what?
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2 replies | 228 view(s)
10-07-2017,
11:43 AM
Denis
replied to a thread
Find angles of triangle if AB+AD=CD and AC+AD=BC (very hard for me)
in
Geometry and Trig
Did you look up "angle bisector"? Here's one of many "teachers": https://en.wikipedia.org/wiki/Angle_bisector_theorem
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2 replies | 216 view(s)
10-07-2017,
11:24 AM
Denis
replied to a thread
Solve T = x + y + z, z = 5000, y = 15000, x = 0.60 * T for T
in
Beginning Algebra
Can you solve this for x: x - .3x = 14
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14 replies | 943 view(s)
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About Denis
Basic Information
About Denis
Location:
Ottawa, Ontario
Interests:
puzzles
Occupation:
retired
Signature
I'm just an imagination of your figment !
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Last Activity
Today
12:09 PM
Join Date
02-17-2004
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