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neonofarm
1 day ago
7

A hot air balloon descends to the ground. The function a(t) = 210 – 15t can be used to describe the altitude of the balloon as i

t approaches the ground. The time is in minutes
Mathematics
2 answers:
lawyer [9.2K]1 day ago
8 0

Answer: PLS MAKE BRAINLIEST

-What does t represent? - It denotes the time elapsed after the balloon starts descending./ answer B

-What does a(t) signify? - It indicates the balloon's altitude./ answer A

-What information does a(5.5) provide? - It shows the altitude of the balloon after 5.5 minutes./ answer B

Step-by-step explanation:

Got it right on EDGE 2020

Inessa [9K]1 day ago
6 0
When the balloon touches the ground, a(t) will equal zero.

To calculate the time it takes to reach the ground, the equation can be set up as follows:

210 - 15t = 0
Solving this yields t = 210/15, equating to 14 minutes.
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