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grigory [225]
3 years ago
9

The function d(x)=1375-110 represents the distance a high speed train is from its destination after x hours. How long does the t

rain travel before reaching its destination
Mathematics
1 answer:
aalyn [17]3 years ago
6 0
D(x)=1375-110x
when it reaches 0 it has reached destination
0=1375-110x
add 110x to both sides
110x=1375
divide both sides by 110
x=12.5
answer is 12.5 hour
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Answer:

4.50 s

Step-by-step explanation:

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The green is located at an elevation of -7 feet, so the ball lands on the green when

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Substituting into (1)

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This is a second-order equation in the form

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which has solutions

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Substituting into (2) we find the solutions:

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