A jar contains 11 red marbles, 12 blue marbles, and 6 white marbles. Four marbles from this jar are selected, with each marble being replaced after each selection. What is the expected number of draws until the first red marble? Since about half of the marbles are red, 2 draws is expected until a red marble is drawn.
Since there are 3 colors of marbles, 3 draws is expected until a red marble is drawn.
Since StartFraction 11 Over 29 EndFraction of the marbles are red, StartFraction 11 Over 29 EndFraction draws are expected until a red marble is drawn.
Since StartFraction 11 Over 29 EndFraction of the marbles are red, StartFraction 29 Over 11 EndFraction draws are expected until a red marble is drawn.

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

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3.how is solving radical equations different than solving linear equations?

step-by-step explanation:

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.