+0  
 
0
362
1
avatar

What are the values of x and y?

 

 Feb 22, 2021
 #1
avatar+592 
0

y = √(12 + x)2 - 152

y = √x2 + 92

 

This means:
√x2 + 9= √(12 + x)2 - 152

x2 + 92 = (12 + x)2 - 152

x2 + 81 = x2 + 24x + 144 - 225

x2 = x2 + 24x - 162

162 = 24x

x = 6.75

 

y = √x2 + 92

   = √(6.75)2 + 81

   = √(45.5625 + 81)

   = √126.5625

y = 11.25

 Feb 22, 2021

3 Online Users