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• Yesterday, 06:49 PM
The "below" is not displaying for the rest of us. Also, without any further information (than just the magnitude of two of the forces), there is no...
3 replies | 95 view(s)
• Yesterday, 06:11 PM
Please reply showing your work so far, so we can see what's going on. You set the right-hand side of the equation equal to zero, you multiplied...
4 replies | 90 view(s)
• Yesterday, 06:05 PM
There are no fractions in the original expression, so I don't know what you mean when you refer to "rationalizing everything"...? What tools,...
2 replies | 58 view(s)
• 02-20-2018, 01:33 PM
For ease of computation, I have labelled angle EDC as "a", DEC as "b", and EDF as "c". Including "x" and looking at the straight lines ADC and BEC...
11 replies | 256 view(s)
• 02-20-2018, 01:04 PM
You say that you "figured out two of the probabilities", but that you are "having trouble with the third one" and weren't "able to answer the second...
7 replies | 275 view(s)
• 02-16-2018, 05:16 PM
Your formatting is ambiguous. I've broken the stream-of-consciousness math into separate lines, but I'm still confused. The derivative, in the...
7 replies | 442 view(s)
• 02-16-2018, 05:08 PM
It's just plugging a number in, and simplifying. Copy the "C_limb" expression to the end of the COL_walk expression. Then pick a value for phi....
7 replies | 294 view(s)
• 02-16-2018, 04:21 PM
Aw, shucks; thanks! :lol:
3 replies | 348 view(s)
• 02-16-2018, 04:16 PM
What did you find, when you plugged in larger values? ;)
7 replies | 294 view(s)
• 02-16-2018, 04:08 PM
A typo, I suspect. So you understand how to get to here: . . . . .u^2\,-\, 2u\, -\, 3 ...but you don't know how to factor this. To learn...
4 replies | 235 view(s)
• 02-16-2018, 04:03 PM
I suspect that the reason there have been no previous replies to this question is that you made two posts in quick succession with the same subject...
1 replies | 135 view(s)
• 02-16-2018, 03:52 PM
From what you have posted in reply to a previous helper, I will guess that you mean that the sum begins at "n = 3" and "goes to infinity", so the...
3 replies | 184 view(s)
• 02-14-2018, 04:08 PM
It was also classified as such by the creator, who filed for copyright infringement in an attempt to protect his property, not only from plagiarism,...
3 replies | 348 view(s)
• 02-11-2018, 05:41 PM
To learn how to set up and solve "percent of" exercises like this, try here. After having studied the full lesson, use the set-up method...
4 replies | 239 view(s)
• 02-11-2018, 05:31 PM
Use what you learned in pre-algebra about prime factors, and other divisors. In how many ways can powers of 2 be factors? In how many ways can powers...
4 replies | 474 view(s)
• 02-11-2018, 05:29 PM
If the light is actually "manipulated" by somebody driving over some sensor about an eighth of a mile away (assuming the driver never slows), then...
2 replies | 136 view(s)
• 02-11-2018, 05:23 PM
What does your textbook mean by "keeping it...the same as before" when clearly you're changing things? When you reply, please include the full and...
4 replies | 194 view(s)
• 02-11-2018, 05:22 PM
Okay; where are you stuck? For instance, you started by finding the sum of the initial values, knowing that the average will involve that sum (then...
1 replies | 72 view(s)
• 02-11-2018, 05:14 PM
You're referring to a lesson in physics. The lesson clearly specifies that what you've called an "equation" is actually an approximation, "very close...
4 replies | 213 view(s)
• 02-11-2018, 05:06 PM
More to the point, you can deal only with the top half, and then multiply the half-rectangle result by 2 to get the full-rectangle result. For...
7 replies | 442 view(s)
• 02-10-2018, 07:05 PM
Hint: 3 3 4 3 4 5 ...and so forth. ;)
5 replies | 429 view(s)
• 02-10-2018, 07:03 PM
This equation says that the second digit, b, is nineteen times as much as (nineteen times) the whole two-digit number. The exercise says that b is...
5 replies | 491 view(s)
• 02-10-2018, 06:49 PM
I suspect "the" (intended) solution method will involve some guess-n-check, just as in the case of similar exercises. (To locate these similar...
6 replies | 324 view(s)
• 02-10-2018, 06:39 PM
Please reply showing how you followed through on the steps and hints you were provided. You created the equation they'd almost given you, you solved...
8 replies | 347 view(s)
• 02-10-2018, 06:26 PM
As you have posted it, the equation above typesets as follows: . . . . .m(t)\, =\, 325e\, -\, 0.01t Is this what you meant? Or were there...
2 replies | 135 view(s)
• 02-10-2018, 06:14 PM
What do you mean by "projections...is...how to work out this problem"? What search terms did you use (other than "distance point plane") that led you...
1 replies | 143 view(s)
• 02-10-2018, 06:08 PM
Is this really the speed of the plane "relative to the air", which is moving north at thirty miles an hour? Or is this the speed of the plane...
3 replies | 178 view(s)
• 02-10-2018, 06:05 PM
I have copied (a portion of) the subject line, which you seem to state is actually the instructions for the first two "questions" (listed as "a" and...
5 replies | 298 view(s)
• 02-10-2018, 05:34 PM
Since you're working through this problem set (with numbered questions and multiple-choice answers) for fun ("not homework, just interesting"),...
3 replies | 161 view(s)
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