exam
Maths Puzzle
Numerical Ability
A fair coin is tossed 5 times. What is the probability of obtaining exactly 3 heads? How do I work this out in steps?
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exam Other Question
suppose tht 12 dimes and nickels are worth 95 cents . how many dimes and nickels are there??
i need help with this problem can you please show me how you would solve it and its solution thank you
3a^2y^2-6a^2y+21a^2