All SAT Math Resources
Example Question #2 : Rational Expressions
If √(ab) = 8, and a2 = b, what is a?
If we plug in a2 for b in the radical expression, we get √(a3) = 8. This can be rewritten as a3/2 = 8. Thus, loga 8 = 3/2. Plugging in the answer choices gives 4 as the correct answer.
Example Question #2 : How To Evaluate Rational Expressions
Example Question #1 : How To Evaluate Rational Expressions
If Jill walks in , how long will it take Jill to walk ?
To solve this, we need to set a proportion.
So it will take Jill to walk
Example Question #3 : Rational Expressions
If , then which of the following must be also true?