Alorry is travelling at 13.5 m/s along a stretch of road where the speed limit is 50km/h. show the lorry is travelling below the speed limit.

50 km/hr >48.6 km/hr the speed of lorry is less that speed limit.

Step-by-step explanation:

Given : A lorry is travelling at 13.5 m/s along a stretch of road where the speed limit is 50 km/h.

To find : Show the lorry is travelling below the speed limit ?

Solution :

The speed limit is 50 km/h.

A lorry is travelling at 13.5 m/s along a stretch of road.

We have to convert m/s into km/hr,

Multiply the given number by 18/5,

So, A lorry is travelling at 48.6 km/hr along a stretch of road.

As, 50 km/hr >48.6 km/hr the speed of lorry is less that speed limit.

Therefore, The lorry is travelling below the speed limit.

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step-by-step explanation:

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)