math

posted by .

I am having a hard time figuring out the distane between two points the points are (9.8,-9.9)(-7.5,-5.5)I have the formula but i continue getting the wrong answer.

  • math -

    Between those two points, there's a change in x (the horizontal leg of a right triangle) and a change in y (the vertical leg of a right triangle). The distance between them is therefore the hypotenuse of the right triangle.

    x^2+y^2 = distance^2
    (it's the Pythagorean Theorem, because the distance IS the hypotenuse)

    x is the CHANGE in x, and y is the CHANGE in y (which create the horizontal and vertical legs, respectively).

    So:

    (-7.5-9.8)^2 + (-5.5--9.9)^2 = (-17.3)^2 + (-5.5+9.9)^2 = (-17.3)^2 + (4.4)^2 = 299.29 + 19.36 = 318.65

    ANSWER: The distance between the two points is 318.65 units.

  • math -

    that is the answer i have but it is not correct. i guess i am suppose to reduce it and square the answer. I have tried another problem. Find the distance between the pair of points (-6.2,4.6)(-4.5,0.6) i have the distance as 141.50 and their answer is 4.35. how did they get this answer i squared 141.50 and still did not get 4.35.

  • math -

    Whoops! Forgot to take the square root. Duh!

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    An athlete starts at point A and runs at a constant speed of 5.40 m/s around a round track 250 . in diameter. Find the x component of this runner's average velocity between points A and B. GOT THIS!!! 3.4 m/s Find the y component of …
  2. jasmine20

    I just wanted to say I have seen you getting better in math as time goes on. You take the ideas presented to you and do a really good job of figuring out how to apply them. Noticed your hard work and thought I'd give you a kudos. I …
  3. Math Question

    Jane has two tennis serves, a hard serve and a soft serve. Her hard serve is in (a good serve) 50% of the time, and her soft serve is in (good) 75% of the time. If her hard serve is in, she wins 75% of her points. If her soft serve …
  4. Stats formula

    i have a hard time figuring out which formula's to use when solving problems. which would i use for the following: if X is a normal random variable with mean u=60 and a Std Dev.=2 find: A. p(x<58) B. p(x>63) C. p(57<X<64)
  5. math

    Find the distance between the two points. Round an approximate result to the nearest hundredth. (-1, -1) and (3, -7) A) 7.21 B) 26 C) 6.93 D) 24 i don't know if i am doing something wrong but i keep getting the answer of 2
  6. Math214

    Jane has two tennis serves, a hard serve and a soft serve.Her hard serve is in (a good serve) 50% of the time, and her soft serve is in (good) 75% of the time. If her hard serve is in, she wins 75% of her points. If her soft serve …
  7. Math (surveying)

    I am having a really hard time figuring this problem out. I need to see how it is worked. THANKS!
  8. Math

    I am having a hard time figuring out if I have a piece of ribbon that is 12/5 meters long. When it idcut 17/20 meters what is the remainder
  9. Quadratic equations Trig

    I am having a hard time figuring this out. I know I need to find the vertex from the vertex form equation but I am having a hard time figuring out the equation. A caterer will charge a certain club $20 per member to cater a dinner …
  10. Math

    What value of x makes this equation true?

More Similar Questions