What is the probability of rolling a 4 on a number cube and pulling a red marble out of a bag that contains 3 red 2 black and 5 yellow marbles

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k

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Explain how you can show five less than a number using an algebraic expression