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Verdich [7]
4 years ago
10

Someone please solve this

Mathematics
1 answer:
babymother [125]4 years ago
8 0
6,135.9 is the correct answer
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Christianity Ronaldo ordered some water bottles for his soccer team. the total cost of the water bottles was 34.35. The water bo
miss Akunina [59]

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15

Step-by-step explanation:

You divide 34.35 and 2.29 and that's ur answer

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valina [46]

Answer:

A

Step-by-step explanation:

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6 0
3 years ago
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At a given moment, a plane passes directly above a radar station at an altitude of 6 km6 km and the plane's speed is 800 km/h.80
Valentin [98]

Answer: see explanation

Step-by-step explanation:

so you have a plane at constant altitudeof 6km (6000m) flying at 800 km/h (222.222 m/s) (see the image)

the plane is moving with constant speed therefore x(t) = 222.222*t => no forces are interacting horizontally with the plane therefore acceleration is 0, then v is constant and x(t) is a linear function which coefficient is v.

now we have a triangle with an angle theta, one side is x(t), and the other is 6000m. we can get theta by tan(theta) = 6000/(222.222*t). 24 minutes are 1440 seconds so if we replace such value, we get the theta angle by  solving for theta => theta = arctan(6000/(222.222*1440)) = 0.019 radians or 1.074 degrees. Now if you want to know the exchange rate of theta we have to differentiate the expression with respect to t:

\frac{d}{dt} \theta = \frac{d}{dt}(arctan(\frac{6000}{222.222*t} )) = \frac{1}{1+\frac{6000}{222.222*t} } * -\frac{27}{t^2}  = -\frac{27}{t^2+729.001}

then replace t with 1440 and you will get that theta is changing by -0.000013 (1.3E-5) radians or -7.458E-4 degrees every second which has a lot of sense since the plane is getting out of your line of sight due to the earth's curvature

5 0
3 years ago
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