Abag contains 3 red marbles and 4 blue marbles. a marble is taken at random from the bag and replaced. another marble is taken from the bag. work out the probability that the two marbles taken from the bag are the same colour. od 3 give your answer as a fraction.

answer: i'm great at algebra

~coco

step-by-step explanation:

c

c

c

c

c

c

c

cc

c

step-by-step explanation:

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

b

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