ACT Math 5.4 Intermediate Algebra
ACT Math: Intermediate Algebra: Drill 5, Problem 4. Which expression is equivalent?
|ACT Math||Intermediate Algebra|
|ACT Mathematics||Intermediate Algebra|
Write expressions in equivalent forms to solve problems
|Foreign Language||Arabic Subtitled|
Rational, radical, and logarithmic expressions
|Product Type||ACT Math|
If a to the b power equals x, then log base a of x...equals...b.
In this case, the base of the exponent is x, so the base of the logarithm must be x.
That leaves us with C or D. The exponent is 3...so we know the answer must be C.
Answer D would only be correct if we had x to the 48th power equals 3.
But we don't have that. So the answer is C