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sara1234 Group Title

steps to solve for x

  • one year ago
  • one year ago

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  1. sara1234 Group Title
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    |dw:1351740959275:dw|

    • one year ago
  2. tcarroll010 Group Title
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    a^2 + b^2 = c^2 where c is the length of the hypotenuse.

    • one year ago
  3. sara1234 Group Title
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    what do i put for a and b

    • one year ago
  4. tcarroll010 Group Title
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    Do you know what a hypotenuse is?

    • one year ago
  5. sara1234 Group Title
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    x the longest side

    • one year ago
  6. tcarroll010 Group Title
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    Yes, that's right. Of the two remaining sides, it doesn't matter which one you call "a" or "b", just as long as neither is the hypotenuse because the hypotenuse is "c", or in your diagram, "x". So, you could change the formula to a^2 + b^2 = x^2 because it is understood that that is x. Once you add together the squares of "a" and "b", you THEN take the square root to get x.

    • one year ago
  7. sara1234 Group Title
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    can you please show me so i can use it as an example

    • one year ago
  8. tcarroll010 Group Title
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    Ok, but you will fill in the "a" and the "b". You are looking for steps as indicated in your problem. x^2 = a^2 + b^2, so x = sqrt(a^2 + b^2). As for actual steps: 1) square "a" and "b" separately, 2) add the resulting values to get one number, 3) take the square root of that number and then you have "x".

    • one year ago
  9. sara1234 Group Title
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    i don't understand like that i need this as an examlpe

    • one year ago
  10. tcarroll010 Group Title
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    What's "a" and what's "b"? They are in your diagram.

    • one year ago
  11. sara1234 Group Title
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    7 and 32

    • one year ago
  12. tcarroll010 Group Title
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    Good. So, x^2 = a^2 + b^2 becomes x^2 = 7^2 + 32^2. Now, square 7 and 32 separately and get two numbers, one for each. Add them to get one number. Take square root of that one number and you get "x".

    • one year ago
  13. sara1234 Group Title
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    i got 6.2 which i dont think is right

    • one year ago
  14. tcarroll010 Group Title
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    Your post came before I posted, so first go back to my last post.

    • one year ago
  15. sara1234 Group Title
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    1075

    • one year ago
  16. tcarroll010 Group Title
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    It's 1073, not 1075, but you were close. 1073 is x^2, so you take the square root of 1073 to get x.

    • one year ago
  17. sara1234 Group Title
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    3.71 13.21 5.94 8.25

    • one year ago
  18. tcarroll010 Group Title
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    |dw:1351732095243:dw|Is your diagram supposed to look like this?

    • one year ago
  19. sara1234 Group Title
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    no the 32 is a degree

    • one year ago
  20. surdawi Group Title
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    use sin sin(32) = 7/x

    • one year ago
  21. tcarroll010 Group Title
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    That changes everything. sin 32 = 7/x. x = 7 / sin 32.

    • one year ago
  22. sara1234 Group Title
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    whats the final answeR?

    • one year ago
  23. tcarroll010 Group Title
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    just gave it. look for the "x ="

    • one year ago
  24. sara1234 Group Title
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    what???

    • one year ago
  25. tcarroll010 Group Title
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    x = 7 / sin 32.

    • one year ago
  26. sara1234 Group Title
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    thats not a answer choice

    • one year ago
  27. tcarroll010 Group Title
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    then do the sin 32 and use the number

    • one year ago
  28. tcarroll010 Group Title
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    I did the sine and found that the answer is one that is listed.

    • one year ago
  29. tcarroll010 Group Title
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    can you determine sin 32?

    • one year ago
  30. surdawi Group Title
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    13.21?

    • one year ago
  31. tcarroll010 Group Title
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    That was for the student to get the answer, surdawi.

    • one year ago
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