Concept explainers
a.
To find the value of h (20)
a.
Answer to Problem 1.7.1.5P
After 20 seconds, the height of balloon is 46 feet.
Explanation of Solution
Given information:
Expression is
Calculation:
Substituting value of t,
Solving the equation,
Hence,
After 20 seconds, the height of balloon is 46 feet.
b.
To tell height of balloon after 2 minutes
b.
Answer to Problem 1.7.1.5P
Height of balloon after 2 minutes is 246 feet.
Explanation of Solution
Given information:
T= 2 minutes
Calculation:
Converting minutes into seconds,
2 minutes= 120 seconds
Substituting values of t,
Solving,
Hence, height of balloon after 2 minutes is 246 feet.
c.
To find height of balloon
c.
Answer to Problem 1.7.1.5P
8 feet
Explanation of Solution
Given information:
Calculation:
Right before the balloon was released, t= 1 second.
Substituting value of t
Solving,
Hence, height of balloon was 8 feet.
d.
To check whether there are any restrictions on t
d.
Answer to Problem 1.7.1.5P
There is no restriction on t.
Explanation of Solution
Given information:
For t there is no restrictions, as t is considered as an independent variable. It can have any value.
Chapter ISG Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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