You have a bag that contains 7 red marbles and 5 blue marbles you randomly choose one of the marbles without replacing the first marble you choose the second marble. Is it independent or dependent?

Need ! give step by step solutions on how to solve number one [tex]\frac{9-2\sqrt{3} }{12+\sqrt{3} }[/tex] number two [tex]x+4=\sqrt{13x-20}[/tex] number three (domain and range) [tex]f(x)=2\sqrt[3]{x} +1[/tex]

Solve this 364x-64x=300x and 12(x2–x–1)+13(x2–x–1)=25(x2–x–1)

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)