Three marbles are picked from a bag containing three green marbles, eight blue marbles and nine red marbles without replacement. (a).Draw a probability tree showing the total possible outcomes.( b).what is the probability of picking : 1.three red marbles 2.one green and two blue marbles. 3.all three colours 4. not a green marble.

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Find the missing dimension! need asap! tiny square is a =3025 in ²

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?