SOLUTION: May you please help me . If Ab =5 and bc=12 ,what is the length of ac? A 7 B 13 C 15 D17 E 19

Algebra ->  Pythagorean-theorem -> SOLUTION: May you please help me . If Ab =5 and bc=12 ,what is the length of ac? A 7 B 13 C 15 D17 E 19      Log On


   

Question 891775: May you please help me . If Ab =5 and bc=12 ,what is the length of ac?
A 7
B 13
C 15
D17
E 19
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Assuming you're dealing with a right triangle. I'm also assuming the legs are 5 and 12 and the hypotenuse is unknown.


x^2 + y^2 = z^2

5^2 + 12^2 = z^2

25 + 144 = z^2

169 = z^2

z^2 = 169

z = sqrt(169)

z = 13


So the hypotenuse AC is 13 units long.