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Sonbull [250]
3 years ago
5

Please answer correctly !!!!!! Will mark brainliest !!!!!!!!!!!!!

Mathematics
1 answer:
Leni [432]3 years ago
4 0

Answer:

At the time of launch height of the object was 60 meters.

Step-by-step explanation:

An object was launched from a platform and its height was modeled by the function,

h(x) = -5x² + 20x + 60

Where x = time or duration after the launch

At the time of launch, x = 0

So, by putting x = 0 in this equation,

h(0) = -5×(0) + 20×(0) + 60

h(0) = 60

Therefore, at the time of launch height of the object was 60 meters.

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Hey there! :D

Think of it this way. The question is saying that the text messages are all equally the same value, or expense. If you were to divide 16 by $3.20, you would find that each text was the same amount to send. That the input (the number of text messages) is directly related in the same pattern to the output (the cost of the text messages). 

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We already know that 0.20 is the constant number. In other words, every text message cost $.20. 

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I hope this helps!
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