A) \[\frac{1439}{9}\]
B) 160
C) \[\frac{1443}{9}\]
D) 169
Correct Answer: B
Solution :
[b] \[\sqrt{1+\frac{x}{9}}=\frac{13}{3}\] Squaring on both sides, \[1+\frac{x}{9}=\frac{169}{9}\] \[\Rightarrow \,\,\,\frac{x}{9}=\frac{169}{9}-\,1=\frac{160}{9}\] \[\Rightarrow \,\,\,x=160\]You need to login to perform this action.
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