Assignment:
Q1. List all numbers for which the rational expression is undefined
4/b+7
Q2. A line from the top of a cliff to the ground passes just over the top of a pole 8.0 ft high and meets the ground at a point 9.0 ft from the base of the pole. If the point is 65 ft from the base of the cliff, how high is the cliff? Round to the nearest unit.
Q3. Multiply and, if possible, simplify.
6z^2/3 - 4/z^4
Q4. Divide and if possible, simplify
6x^3/2y^2 / 4x^7/5y^4
Provide complete and step by step solution for the question and show calculations and use formulas.