Solve for .
Answer and explanation
Correct answer: C. 2
- Step 1: Write both sides with base 3: , so . Answer: 2. Why not the others: 4: ignores the shift in the exponent. 6: adds the shift. 81: gives the power itself.
Practise more Algebra, calculus and geometry.
Free questions with an explanation for every one, and full timed UNI Admission Exam (Peru) mock tests.
More Algebra, calculus and geometry questions
- Find the -coordinate of the local minimum of .
- What are the coordinates of the vertex of the parabola ?
- The function is defined by . Find .
- How many real roots does the equation have?
- Find the gradient of the tangent to at the point where .
- What is the area enclosed by , the -axis and the line (in square units)?