A right triangle has legs of length 7 and 9. What is the length of the hypotenuse?

Question

eric_d · Answer

Welcome to Open Study !!!
@BradSuga

eric_d · Answer

Use pythagorean theorem 
@BradSuga

eric_d · Answer

c^2= a^2+ b^2

here_to_help15 · Answer

Ok so 

a^2+B^2=C^2

here_to_help15 · Answer

7^2+9^2=c^2

eric_d · Answer

|dw:1421462946485:dw|

here_to_help15 · Answer

so 7*7=49
and 9*9=81
So 81
   +49
______________
     130
then you square that
$$\sqrt{130}$$

anonymous · Answer

What about the c^2 what exactly happens to the power?

anonymous · Answer

Ah but yet again you put it in radical

anonymous · Answer

The diameter of a circular cylindrical holding tank can be modeled by the function, d=2\/a/π  , where A is the surface area of the circular base of the tank. If the surface area of the base is 64π square feet, what is the diameter of the tank?