Final answer:
To accumulate $10,000 in three years in an account that earns 3% compounded semiannually, you should deposit $9,254.26 today.
Step-by-step explanation:
To find the amount of money that should be deposited today in an account that earns 3% compounded semiannually so that it will accumulate to $10,000 in three years, we can use the formula for compound interest:

Where P is the principal amount, A is the future value, r is the interest rate, n is the number of compounding periods per year, and t is the number of years.
In this case, we want to solve for P:

This gives us a principal amount of $9,254.26. Therefore, the amount of money that should be deposited today is $9,254.26.