An escalator in a shopping centre from level 1 to level 2 is 22 m in length and has an angle of elevotion of 16 Deiermine how hi
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Answer:
Step-by-step explanation:
<u>Quadratic Equation Solving</u>
We have the equation:
Divide by 8:
Now complete the squares so the left side is a perfect square of a binomial:
Factoring the perfect square:
Taking the square root:
The square root of a negative number is an imaginary number:
Solving for x:
The solutions are: