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Keith_Richards [23]
3 years ago
6

At maximum speed an airplane travels 2100 miles against the wind in 6hrs. Flying with the wind the plane can travel the same dis

tance in 4hrs
Mathematics
1 answer:
WARRIOR [948]3 years ago
6 0
Let, the speed of Airplane = x
Speed of Wind = y

We know, Speed = Distance / Time

So, x-y = 2100 / 6
x-y = 350
& x+y = 2100/4
x+y = 525

Substitute value of x from equation 1 into 2, 
350+y+y = 525
2y = 525-350
y = 175/2
y = 87.5

& x = 350+y = 437.5

In short, Speed of Airplane is 437.5 mph and Wind is 87.5 mph

Hope this helps!
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The path of a projectile launched from a 26-ft-tall tower is modeled by the equation y = −16t2 + 64t + 26. What is the maximum h
BabaBlast [244]

Answer:

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Step-by-step explanation:

Here, we want to get the maximum height reached by the projectile

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y = -16t^2 + 64t + 26

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K

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What is the maximum height of of Anna's golf ball? The equation is y=x−0.04x2.
elena-s [515]

Given:

The height of a golf ball is represented by the equation:

y=x-0.04x^2

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y=x-0.04x^2

Differentiate with respect to x.

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y=(12.5)-0.04(12.5)^2

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y=12.5-6.25

y=6.25

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