August 30th, 2019, 01:32 AM  #1 
Newbie Joined: Aug 2019 From: Philippines Posts: 3 Thanks: 0  Solution help
Let the function g be defined by g(x) = 5x + 2. if (sqrt (g (a / 2))), what is the value of a?

August 30th, 2019, 02:30 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 21,127 Thanks: 2336 
As "(sqrt (g (a / 2)))" has the form of an expression, rather than a condition, can you clarify what is required?

August 30th, 2019, 02:34 AM  #3 
Newbie Joined: Aug 2019 From: Philippines Posts: 3 Thanks: 0  This is a question from my SAT prep book, im starting to think there was a typo and something was omitted from this question based on your reply.

August 30th, 2019, 06:55 AM  #4 
Global Moderator Joined: Dec 2006 Posts: 21,127 Thanks: 2336 
Perhaps "If $\displaystyle \!\sqrt{g\!\left(\frac{a}{2}\right)\!} = 6$" was intended. If that's the case, $\displaystyle a = \frac{68}{5}$, which is choice D.

August 30th, 2019, 10:00 AM  #5 
Newbie Joined: Aug 2019 From: Philippines Posts: 3 Thanks: 0  

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