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Concept explainers
Find the time for Ricky`s rocket in the air.
![Check Mark](/static/check-mark.png)
Answer to Problem 9CYU
Approximately 8.4 sec Ricky`s rocket was in the air.
Explanation of Solution
Given:
Ricky built a model rocket. Its flight can model by the equation
Concept Used:
The required Quadratic equation:
To find the time for the ball in the air, substitute:
Calculation:
The required Quadratic equation:
To find the time for the ball in the air, substitute:
Rewrite the equation:
Now find the factor:
Use the zero product rule:
Thus, approximately 8.4 sec Ricky`s rocket was in the air.
Chapter 9 Solutions
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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