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Four math problemss: pleasee ! = /?
Use the Pythagorean Theorem to determine if the following triangle with sides a, b, & c is a right triangle. Answer Yes or No.
triangle: a=12, b=9, c=15
Simplify:
x+5x
__________
3
Simplify:
5m+15
________
m+3
Add (4x2 + 2x - 3) + (2x2 + x - 1)
thank youu so much !
1 Answer
- 1 decade agoFavorite Answer
1) Yes, with those sides, this can be a right triangle. a^2 + b^2 = c^2
12^2 + 9^2 = 15^2
144 + 81 = 225
225 = 225
2) (x + 5x) / 3
= 6x / 3
= 2x
3) 5m + 15 / (m + 3)
= 5(m + 3) / (m + 3)
= 5
4) (4x^2 + 2x - 3) + (2x^2 + x - 1)
= 6x^2 - 3x - 4
