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mmm4444bot
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mmm4444bot
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10-06-2005
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04:56 PM
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Today,
04:43 PM
mmm4444bot
replied to a thread
Material needed to create an open box
in
Geometry and Trig
Using L, W, and H for the inside measurements, I get a larger volume of material. Are you sure that the user is supposed to input the interior...
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1 replies | 22 view(s)
Today,
04:20 PM
mmm4444bot
replied to a thread
Advanced Volume of Irregular object
in
Calculus
Note that the instruction says "region" (singular), not "regions". There's only one region to rotate; it lies within Quadrants I and II. No. ...
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2 replies | 35 view(s)
Today,
03:52 PM
mmm4444bot
replied to a thread
Can you help me solve tihs?
in
Geometry and Trig
Sure! What have you tried or thought about, so far? (Please read the forum guidelines.) My first thought is to subtract the areas of the two...
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1 replies | 19 view(s)
Today,
03:48 PM
mmm4444bot
replied to a thread
find the range of these functions algebraically: y =x^3 + 2x^2 - 5x + 2 and...
in
Intermediate/Advanced Algebra
What quadratic equation did you use, for this?
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8 replies | 171 view(s)
Today,
03:44 PM
mmm4444bot
replied to a thread
Calculus Problems Set Work-though, If Interested.
in
Calculus
Hey, everybody makes mistakes and deals with mistakes. This will never change. Is this what you're thinking? \left(\dfrac{3x^{3/2} y^3}{x^3...
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10 replies | 292 view(s)
Today,
02:31 PM
mmm4444bot
replied to a thread
Calculus 1 - Problem
in
Intermediate/Advanced Algebra
Really? When did this happen? The calculus courses I've seen (five colleges) used "ln" for Base-e, but it's been nearly five years since I've been...
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7 replies | 129 view(s)
Today,
12:58 AM
mmm4444bot
replied to a thread
Calculus 1 - Problem
in
Intermediate/Advanced Algebra
This is correct: 2 logx = 4 - (logx - log10) This is not correct: 2 logx = 4 - logx - log10
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7 replies | 129 view(s)
Yesterday,
11:32 AM
mmm4444bot
replied to a thread
Raising a power to a negative power
in
Pre-Algebra
Ha. My brain woke me up at 2:30 this morning, to tell me that, when you wrote "highest", you literally meant height above the baseline in...
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7 replies | 148 view(s)
Yesterday,
02:00 AM
mmm4444bot
replied to a thread
find the range of these functions algebraically: y =x^3 + 2x^2 - 5x + 2 and...
in
Intermediate/Advanced Algebra
You could take the limit of y, as x increases (or decreases) without bound. That is, investigate the behavior of y, when x approaches positive...
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8 replies | 171 view(s)
Yesterday,
12:41 AM
mmm4444bot
replied to a thread
Hydrostatic Force
in
Calculus
To find lessons and worked examples, try googling keywords: how to solve hydrostatic force problems :cool:
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3 replies | 74 view(s)
Yesterday,
12:38 AM
mmm4444bot
replied to a thread
Some help with rearranging a formula
in
Intermediate/Advanced Algebra
If the original exercise is to solve the following equation for x, when y = 0, then the first step would be to substitute 0 for symbol y, and...
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3 replies | 83 view(s)
Yesterday,
12:23 AM
mmm4444bot
replied to a thread
Some help with rearranging a formula
in
Intermediate/Advanced Algebra
Who gave you this list of steps? They are not correct. Firstly, it's really bad form to use the letter x for two different things in the same...
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3 replies | 83 view(s)
09-19-2017,
11:30 PM
mmm4444bot
replied to a thread
Calculus 1 - Problem
in
Intermediate/Advanced Algebra
Did your instructor give you permission to seek outside help on this exam? The expressions highlighted in red are not correct. In some cases,...
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7 replies | 129 view(s)
09-19-2017,
10:56 PM
mmm4444bot
replied to a thread
Raising a power to a negative power
in
Pre-Algebra
Oh, of course. I was not thinking clearly; I apologize for any confusion, and I will edit that post. These are like nested exponentials, so we...
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7 replies | 148 view(s)
09-19-2017,
10:18 PM
mmm4444bot
replied to a thread
Calculus Problems Set Work-though, If Interested.
in
Calculus
Everything looks good, now, except for #32. See other comments below, also. Here's another way, to evaluate the given summation, by shifting the...
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10 replies | 292 view(s)
09-19-2017,
09:10 PM
mmm4444bot
replied to a thread
Calculus Problems Set Work-though, If Interested.
in
Calculus
There's a symbolic formula, for evaluating a sum of cubes: \displaystyle \sum_{i = 0}^{n} i^{3} = \frac{1}{4} n^{2} (n + 1)^{2} Can you use...
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10 replies | 292 view(s)
09-19-2017,
08:43 PM
mmm4444bot
replied to a thread
Raising a power to a negative power
in
Pre-Algebra
I agree with stapel, that (7^3)^(-2) means this: . . . . .(7^3)^{-2}\, =\, 7^{3\cdot-2}\, =\, 7^{-6}\, =\, \dfrac{1}{7^6} 7^3^-2 means nested...
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7 replies | 148 view(s)
09-19-2017,
07:36 PM
mmm4444bot
replied to a thread
Cryptic clue (Sep.16)
in
Math Odds & Ends
That's funny. :) I'm not sayin' …, yet. Here's your first clue:
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12 replies | 282 view(s)
09-19-2017,
04:08 AM
mmm4444bot
replied to a thread
Calculate the diameter + circumference of a circle (straight line on circumference)
in
Geometry and Trig
The cuboids' footprint is a washer. Let r be the distance from the center of the circle to the midpoint of each cuboid's nearest side. Then, r...
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8 replies | 286 view(s)
09-19-2017,
03:18 AM
mmm4444bot
replied to a thread
How would I solve the following? (finding limits from graphs)
in
Calculus
The limit for f(x) is 3, but 0 is not correct, for the limit of g(x), as x approaches 3 from the left. Fix that, and you're good to go for part 3,...
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2 replies | 82 view(s)
09-19-2017,
02:47 AM
mmm4444bot
replied to a thread
Cryptic clue (Sep.16)
in
Math Odds & Ends
**** LIGHTER **** My revenge: Giveaway (7)
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12 replies | 282 view(s)
09-18-2017,
10:26 PM
mmm4444bot
replied to a thread
Cryptic clue (Sep.16)
in
Math Odds & Ends
Why? :p **** My first try: SINGLES singles = match (Tennis) singles = less (smaller than doubles, triples)
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12 replies | 282 view(s)
09-18-2017,
09:59 PM
mmm4444bot
replied to a thread
If move the origin of a rectangle, rectangle gets smaller by a factor of amount moved
in
Geometry and Trig
What is the "origin" of a rectangle? I'm not familiar with that term, for shapes. You say the rectangle will "become smaller" and you want the...
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1 replies | 80 view(s)
09-18-2017,
06:52 PM
mmm4444bot
replied to a thread
Cryptic clue (Sep.16)
in
Math Odds & Ends
That seems like: Match less (7) Is the word "matchless" being used for anything?
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12 replies | 282 view(s)
09-18-2017,
01:55 AM
mmm4444bot
replied to a thread
Cryptic clue (Sep.16)
in
Math Odds & Ends
Huh? You \text{me}\text{an} the direct is not "matchless"?
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12 replies | 282 view(s)
09-18-2017,
01:37 AM
mmm4444bot
replied to a thread
Math puzzle: (X.6)(y.4) = 288, X^2-y^2 = -5, X.7-3.x = 19, (Y-x)/(x-y)= -1
in
Intermediate/Advanced Algebra
Okay -- she's the boss! In this case, the best your kid can do is say, "no solution", and turn in the work with graphs. :cool:
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20 replies | 476 view(s)
09-18-2017,
01:28 AM
mmm4444bot
replied to a thread
Calculus Problems Set Work-though, If Interested.
in
Calculus
Exercises 12, 14, and 18 look good. In 16, I would write sum (2k - 1). In 20, one of your plus signs needs to be a minus sign. I couldn't...
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10 replies | 292 view(s)
09-18-2017,
01:23 AM
mmm4444bot
replied to a thread
Calculus Problems Set Work-though, If Interested.
in
Calculus
Exercises 2, 4, 6, and 10 look good. In 8, it's the base in the power j^2 that's changing (not the exponent).
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10 replies | 292 view(s)
09-18-2017,
12:55 AM
mmm4444bot
replied to a thread
Calculate back from transformed data: 1.814 = -0.0432252 + 0.457229 x Ashinh ((X + 3.
in
Intermediate/Advanced Algebra
Use algebra, to isolate the arcsinh() term. Then, take the hyperbolic sine of each side. The result is a linear equation in X. Use algebra,...
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3 replies | 126 view(s)
09-18-2017,
12:25 AM
mmm4444bot
replied to a thread
Need help with geometric series: why is it k+1?
in
Intermediate/Advanced Algebra
It's r^k, when the index starts at 1. It's r^(k+1), when the index starts at 0. In the given sequence, the index starts at 0. If, instead,...
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3 replies | 128 view(s)
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Phototypographer, Bank Courier, Computer Programmer, EMT, ER Physicians Asst, Math Tutor, Retirer, +
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