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Svetach [21]
3 years ago
14

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.
What does t represent?


What does a(t) represent?


What information will a(5.5) give?
Mathematics
2 answers:
Mashutka [201]3 years ago
8 0

Answer:

t represents the time in minutes since the balloon started descending.

a(t) represents the altitude of the balloon at t minutes.

a(5.5) gives the altitude at 5.5 minutes.

xenn [34]3 years ago
3 0

<em><u>Answer:</u></em> PLS MAKE BRAINLIEST

-What does t represent - time after the balloon begins to descend/<u><em> answer B </em></u>

-What does a(t) represent- altitude of the balloon/ <u><em>answer A </em></u>

-What information will a(5.5) give- altitude of the balloon after 5.5 minutes/ <u><em>answer B </em></u>

<u><em>Step-by-step explanation: </em></u>

Got it right on EDGE 2020

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Answer:

\dfrac{6}{7}.

Step-by-step explanation:

It is given that the sum of first two terms of an infinite GP is 6.

nth term of a GP is

a_n=ar^{n-1}

a+ar=6     ...(1)

Each term is 5 times the sum of the succeeding terms.

a_n=5(a_{n+1}+a_{n+2}+...+\infty)

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Divide both sides by a.

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The common ratio is 1/6.

Put r=1/6 in (1).

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