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Marty
27th September 2007, 08:36 PM
Please can someone help with this question.
h=0.75x² - 2.4x + 75
Calculate the value of x if h=73.08
IceMan
27th September 2007, 09:15 PM
73.08=0.75x-2.4x+75
0=0.75x-2.4x+75-73.08
0=0.75x-2.4x+1.92
now use the quad formula x=-b±√(b-4ac)/2a

take a=.75, b= -2.4, c=1.92

x=1.6