If a and b are roots of the quadratic equation 4x²-5x-1=0,find the quadratic equation whose root is 2/a² and 2/b²

What is the area of the triangle 10 13 12

10% of 1,900,000. show me how you got the answer

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice