anonymous
  • anonymous
one leg of a right triangle id 6; the other leg is (2x-3); the hypotenuse is 9. Find the value of x.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
a^2 + b^2 = c^2 6^2 + (2x - 3)^2 = 9^2
anonymous
  • anonymous
We got that...but then can't solve.
anonymous
  • anonymous
36 + (2x - 3)(2x - 3) = 81 you need to foil the 2x-3's 36 +4x^2 - 6x - 6x + 9 = 81 add like terms 4x^2 - 12x + 45 = 81 set it = to 0 4x^2 - 12x - 36 = 0 do you know how to solve from here?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
We got to where you are...then can't get anything to add to -12x?
anonymous
  • anonymous
First of all you have a common factor of 4 you should take out... Also, if you look at the sign in front of the 36 that is what tells you if you should add or subtract.. so in this case you are finding factors that subtract to get 12... BUT 4(x^2 - 3x - 9) and you are correct there are no factors of 9 that subtract to get 3. Do you know the quadratic formula yet?
anonymous
  • anonymous
next chapter in the book...but I guess the teacher thinks we should know it.
anonymous
  • anonymous
No, I would guess that there is a problem with one of the numbers either you wrote above or the problem is wrong.. I would think it would come out to be a nice factored number if this is as far as you have gotten, otherwise you are going to get a number with square roots in it....
anonymous
  • anonymous
so what would the sq root look like?
anonymous
  • anonymous
3 + sqrt(9 - 4(1)(-9)) all over 2 3 + sqrt(45) ---------- 2

Looking for something else?

Not the answer you are looking for? Search for more explanations.