James is selecting a marble. James chooses a marble at random and then replaces it. He then selects a second marble at random. W
hat is the probability that James
1 answer:
Answer:
The probability of selecting a solid black marbles both times;
P = 9/100
Attached is the completed question;
Step-by-step explanation:
Number of solid black marbles = 3
Total number of marbles = 10
The probability of selecting a solid black marble;
P1 = 3/10
With the assumption that the marbles are replaced before next selection.
The probability of selecting a solid black marbles both times;
P = P1 × P1 = 3/10 × 3/10 = 9/100
P = 9/100
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- x²y+xy² / y²+2/5 × xy
Factor the expressions that are not already factored.
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<u>How </u><u>to</u><u> factorise</u><u> </u><u>:</u><u>-</u>
<u>NUMERATOR</u>
Factor out xy.
<u>DENOMINATOR</u>
Factor out 1/5.
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Continuing...
Cancel out y in both the numerator and denominator.
Expand the expression.
This can further simplified to as