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Llana [10]
3 years ago
6

A plane travels 2,000 kilometers at a a speed of 900 kilometers per hour (kph) with no wind. When a tailwind is present, the pla

ne’s speed increases by x kilometers per hour. The time it takes the plane to travel the same distance with the tailwind, t(x), is defined by the function t(x)= 2,000/900+x. What is the meaning of the y-intercept for this function?
Mathematics
2 answers:
ch4aika [34]3 years ago
3 0

Answer:

The meaning of the y-intercept is the time needed for the plane to cover 2,000 kilometers at a a speed of 900 kilometers per hour (kph) with no wind.

Step-by-step explanation:

The time it takes the plane to travel 2,000 kilometers with the tailwind, t(x), is defined by the function

t(x)=\dfrac{2,000}{900}+x,

where x is the increase in speed when the plane travels with the wind (tailwind).

The y-intercept is at x = 0, then

t(0)=\dfrac{2,000}{900}+x\\ \\t(0)=\dfrac{20}{9}=2 \dfrac{2}{9}\ hours

The meaning of 2 \dfrac{2}{9} hours is the time needed for the plane to cover 2,000 kilometers at a a speed of 900 kilometers per hour (kph) with no wind.

Reil [10]3 years ago
3 0

Answer:

i think it is a in edge

Step-by-step explanation:

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Another expression for the given rational function is x =r^\frac{1}{2}s^\frac{1}{2}

<h3>Indices expression</h3>

Given the rational function expressed as:

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We can reconstruct the expression by writing it using exponents as shown;

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Separate to have:

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Step-by-step explanation:

We solve this question using the least common multiple method

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