3 years ago

The intersection of two lines is a

Mathematics

1 answer:

pashok25 [27]3 years ago

8 0

The interstection of 2 lines is a plane

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3 years ago

in a car race feild(round track that is 500m diameter an observer was starting point and the race started a red car finished 5 l

Eddi Din [679]

Answer:

Distance between the observer and the red car is $250 Sin \frac{\pi}{3}t$

Step-by-step explanation:

Diameter of field = 500 m

Radius of field = $\frac{Diameter}{2}=\frac{500}{2}=250 m$

Let R be the radius and the speed at which the car completes race be w

So, $w=\frac{2\pi}{T}$

Car finished 5 laps in minutes = 30

Car finished 1 lap in minutes = $\frac{30}{5}=6$

So, $w=\frac{2\pi}{6}=\frac{\pi}{3}$

Refer the attached figure

Angle between car and observer = wt

So, Distance between the observer and the red car is give as A sin wt

So, Distance between the observer and the red car= $250 Sin \frac{\pi}{3}t$

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Step-by-step explanation:

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2 years ago

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Answer:

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Step-by-step explanation:

f^2−9>−5

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f^2−9+9>−5+9

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Take the square root of each side, remembering to flip the sign of the inequality for the negative

f>2 or f<-2

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Step-by-step explanation:

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