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  1. Question: Algebra

    by asterisk_man
    Answers
    7
    Views
    1,703

    I couldn't disagree more. My example did not use...

    I couldn't disagree more.
    My example did not use fractional exponents.
    Do you disagree that 2^3*2^4=128?
    Do you disagree with the identity x^a*x^b=x^(a+b)?
    I gave an example of how to multiply...
  2. Answers
    4
    Views
    3,009

    You're talking about permutations...

    You're talking about permutations. N items can be arranged in n! Ways (where ! Is the symbol for factorial).
    For example, 5 items can be arranged in 120 ways and 20 items can be arranged in...
  3. Question: Algebra

    by asterisk_man
    Answers
    7
    Views
    1,703

    juhi2011, if you think my answer is wrong please...

    juhi2011, if you think my answer is wrong please provide the right answer to prove that you are correct so that I may have a chance to disagree with you.
  4. Question: Algebra

    by asterisk_man
    Answers
    7
    Views
    1,703

    This should be a new question. However, just like...

    This should be a new question. However, just like with normal numbers you need to get to a common denominator. For example, \frac 1 {2x} + \frac 1 x = \frac 1 {2x} + \frac 2 {2x} = \frac {1 + 2} {2x}...
  5. Answers
    5
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    1,370

    jiten55 seems right to me. Substitute x=1 in and...

    jiten55 seems right to me. Substitute x=1 in and you'll see it's right.

    5^{1+3}-5^{1+1}=5^4-5^2=625-25=600
  6. Answers
    3
    Views
    3,185

    We won't do your assignments for you. If you have...

    We won't do your assignments for you. If you have any questions on how to implement a sort function we can answer that
  7. Answers
    6
    Views
    1,433

    I think a faraday cage will block magnetic fields...

    I think a faraday cage will block magnetic fields as well as electric fields so surrounding the spoon with a metallic sphere should also work.
  8. Answers
    6
    Views
    1,433

    yeah, try another object which is also attracted...

    yeah, try another object which is also attracted to the magnet. I believe that if you put an iron sheet between the magnet and the spoon the iron sheet will conduct the magnetic lines of force...
  9. Answers
    1
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    655

    Sorry kesavan, I guess none of us are really...

    Sorry kesavan, I guess none of us are really familiar with the hope apparatus. I've found few references to it online and none of them seemed to really help me answer your question. Do you know of...
  10. Answers
    4
    Views
    9,188

    Please review your class notes and/or textbook...

    Please review your class notes and/or textbook for this answer. We do not do your homework for you.
  11. Question: Expets only!

    by asterisk_man
    Answers
    3
    Views
    424

    Since I'm an expert I'll answer your questions:...

    Since I'm an expert I'll answer your questions:
    Capuchin,last Thursday, in his bedroom, wouldn't you like to know. ;)

    Seriously, this is like asking who discovered fire, or the wheel. The article...
  12. Answers
    5
    Views
    807

    jiten55 is essentially correct. One extra thing...

    jiten55 is essentially correct. One extra thing to be aware of is that since this will result in a quadratic equation you'll end up with two mathematic solutions for x. However, only one of them will...
  13. "twenty minus the product of 4 and a number x is...

    "twenty minus the product of 4 and a number x is less than four" and you came up with "(x-y)x^2-12xy+20y^2)"??
    you can't be serious, that equation must be for a different problem.

    lets work it...
  14. Question: Algebra

    by asterisk_man
    Answers
    9
    Views
    800

    Do you have a question or are we supposed to...

    Do you have a question or are we supposed to guess?
    Whatever your question, show your work and we'll help you out.
  15. Answers
    1
    Views
    626

    what's the question? There are an infinite number...

    what's the question? There are an infinite number of equations in terms of x that would return 35 when x=7. There are even an infinite number of linear equations with that property.
  16. Answers
    1
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    1,160

    I think your initial equations will transform...

    I think your initial equations will transform into this (if this helps you) but I haven't done matrices in a while:
    \left[ \begin{array}
    2 \\
    3
    \end{array} \right] x +
    \left[ \begin{array}
    5...
  17. Answers
    1
    Views
    5,778

    Draw a picture, look at the angles, try drawing a...

    Draw a picture, look at the angles, try drawing a line which goes through point B and perpendicular to line AC.
  18. Question: Magnetism

    by asterisk_man
    Answers
    3
    Views
    969

    Try this thread:...

    Try this thread:
    https://www.askmehelpdesk.com/science-children/three-metals-attracted-magnet-5060.html
  19. Answers
    2
    Views
    675

    Atomic radius - Wikipedia, the free encyclopedia...

    Atomic radius - Wikipedia, the free encyclopedia
  20. Answers
    1
    Views
    580

    The problem you have listed is ...

    The problem you have listed is
    -3.6P_0+83.3=\left(3 \frac 4 7\right)P_0+46.4
    and you want to solve for P0.
    First I'll convert 3 4/7 to 3.57

    -3.6P_0+83.3=\left(3.57\right)P_0+46.4 \\
    \text...
  21. Answers
    4
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    939

    Oooh, sorry capuchin. My answer gave it away much...

    Oooh, sorry capuchin. My answer gave it away much more than your more helpful advice!
  22. Answers
    5
    Views
    755

    is your equation 59dB=20\log {\frac 1...

    is your equation
    59dB=20\log {\frac 1 {{\left(1+{\left(\frac F {Fc}\right)}^6\right)}^{\frac 1 2}}}

    And what base is your log? I'm assuming base 10. So log(10)=1.
  23. Answers
    4
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    939

    assuming it's a convex polygon the equation for...

    assuming it's a convex polygon the equation for the sum of the interior angles in degrees is (n-2)*180 where n is the number of sides.
  24. Answers
    5
    Views
    755

    can't you start with the fact that a^{\log_a...

    can't you start with the fact that a^{\log_a b}=b? After that it's all algebra I think.
  25. Answers
    4
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    608

    Not sure what you mean. When n=2 n^4+1=17 which...

    Not sure what you mean. When n=2 n^4+1=17 which IS prime.
    Initial investigations (n=1.. 6) indicate that it IS prime if n is an even positive integer.
  26. Answers
    8
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    4,107

    Thanks for showing your work! :) Since you...

    Thanks for showing your work! :)

    Since you want to solve for when x=-4 you don't need to do it the hard way and pull the x all the way through. Just substitute the -4 straight away and it will be...
  27. Answers
    8
    Views
    4,107

    Can you show your work so far?

    Can you show your work so far?
  28. Answers
    4
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    1,049

    you've got the right idea. You just used the...

    you've got the right idea. You just used the wrong data. You said that the side was 7\sqrt 2, not 7. Replace your 7s with the real side length and you'll be good to go.
  29. Question: Turning fork

    by asterisk_man
    Answers
    7
    Views
    726

    kesavan, you're certainly right that the energy...

    kesavan, you're certainly right that the energy will be distributed across 2 prongs. I think I had some additional complication in mind when I wrote that but I can't remember it now.

    Another idea...
  30. Answers
    3
    Views
    670

    f(x) means evaluate the function f at the point x...

    f(x) means evaluate the function f at the point x
    g(f(x)) means evaluate the function g at the point which is the result of evaluating the function f at the point x.
    essentially you determine f(x)...
  31. Answers
    1
    Views
    938

    What's the probability that 1 gives a poor rating?

    What's the probability that 1 gives a poor rating?
  32. you have enough information. The probability of...

    you have enough information.
    The probability of n independent events each with probability P is P^n
  33. Answers
    2
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    716

    your equation is ambiguous. Is it: \sqrt x + 4...

    your equation is ambiguous. Is it:

    \sqrt x + 4 = 3
  34. Question: Turning fork

    by asterisk_man
    Answers
    7
    Views
    726

    Good question. Clearly a single metal bar will...

    Good question. Clearly a single metal bar will produce a tone when struck and the frequency of a tuning fork is a function of the single tine length. I have two theories about why two tines are used:...
  35. Question: Bar magnets

    by asterisk_man
    Answers
    1
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    1,027

    Nothing will happen unless there are external...

    Nothing will happen unless there are external forces applied to the bar. ;)
  36. Answers
    3
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    3,641

    Ok. shygrneyzs' answer is essentially correct but...

    Ok. shygrneyzs' answer is essentially correct but the explanation is poor. Let's get our terminology correct. If we answer questions using the wrong terms we'll only make the original poster more...
  37. Answers
    4
    Views
    886

    I already answered your question here:...

    I already answered your question here: https://www.askmehelpdesk.com/math-sciences/average-speeed-man-156364.html but I agree with terryg752.
    I'm not really sure what KISS is thinking, certainly...
  38. Answers
    1
    Views
    865

    note the following four facts: 125 =...

    note the following four facts:
    125 = 5^(something)
    (a^b)^c=a^(b*c)
    a^b * a^c = a^(b+c)
    a^b / a^c = a^(b-c)
  39. Answers
    2
    Views
    1,558

    The way to go is to convert all vectors into...

    The way to go is to convert all vectors into their x and y components and then just add all the x and add all the y and then convert that pair into a magnitude/direction.

    For example, for the 15 N...
  40. Answers
    26
    Views
    3,208

    When do you have English class?

    When do you have English class?
  41. Answers
    1
    Views
    826

    Average speed is simple to calculate. Take the...

    Average speed is simple to calculate. Take the total distance traveled and divide it by the total amount of time elapsed.

    So, in your case you have 31 pieces of data which are each 1/60th of a...
  42. Answers
    4
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    830

    I won't explain each line. I will answer specific...

    I won't explain each line. I will answer specific questions you might ask though.
  43. Answers
    2
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    901

    Give everything a common denominator,...

    Give everything a common denominator, add/subtract the numerators and then reduce the result
  44. Answers
    4
    Views
    1,944

    Yeah, clearly a normal pendulum's period is not a...

    Yeah, clearly a normal pendulum's period is not a function of time.
  45. Answers
    4
    Views
    830

    What sort of question is this? Either it's...

    What sort of question is this? Either it's homework, in which case we don't do your homework for you but we can help with specific difficulties you're having, or... well I can't really think of...
  46. Answers
    2
    Views
    3,869

    To use the alt codes above you need to do it in...

    To use the alt codes above you need to do it in the following order:
    Press alt
    Press and release each number in order on the NUMERIC KEYPAD. The normal numbers above the letters will not work. ...
  47. Answers
    2
    Views
    889

    Try your text book

    Try your text book
  48. Question: Integer

    by asterisk_man
    Answers
    3
    Views
    785

    pow is defined as: double pow(double x, double...

    pow is defined as:
    double pow(double x, double y);
    so the two integers you supply, 10 and I, are cast into doubles, the function is evaluated and a double is returned. When that double is then cast...
  49. I don't even think that you've asked a question....

    I don't even think that you've asked a question.
    Also, we will only help with homework, not do it for you.
  50. if you supply a method to determine the value of...

    if you supply a method to determine the value of knowledge and human life I'll let you know. Until then that is a question that each person must answer for themselves.
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