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5x^2 = 10x + 4 5x^2 - 10x = 4 5x^2 - 10x - 4 = 0 ax^2 +bx +c = 0 x = (-b (+/-) ( b² -4ac)^1/2) /(2a) x = (--10 (+/-) ((-10)²- (4 x 5 x -4))^1/2)/(2 x 5) x = (10 (...

J’habite dans une ville dans le sud-ouest d’Angleterre, qui s’appelle Bath. Bath est une ville extrêmement vieille, elle est plein de magasins et il y a une cathédrale historique. J’habite au centre ville...

Orbital Speed = [2Π(Orbital Radius)]/Time Period
3055.5m/s = 10999.8km/h
therefore:
10999.8km/h = [2Π(35786km)]/TT = [2Π(35786km)]/(10999.8km/h)T = 20.4 hours

The food firstly is mechanically digested in the mouth by the action of our teeth and tongue when we bite and churn it around. The saliva secreted in our mouth contains amylase which chemically breaks dow...

the formula for area of a trapezium = 0.5(a+b)htherefore, a = 8, b = 12.5, h = 4therefore, the total area would be 41mm squared