Select all of the expressions that are equivalent (56)3

.
536
563
5363
125216
2564

1 answer

To determine which expressions are equivalent to \( (56)_3 \), we first need to convert the base 3 number \( (56)_3 \) to its decimal (base 10) equivalent.

We can break down \( (56)_3 \) as follows:

\[ 5 \times 3^1 + 6 \times 3^0 \]

Calculating each term:

\[ 5 \times 3^1 = 5 \times 3 = 15 \] \[ 6 \times 3^0 = 6 \times 1 = 6 \]

Now add these two values:

\[ 15 + 6 = 21 \]

Now, we check which of the given expressions are equal to 21.

  1. 536: \( 536 \neq 21 \)
  2. 563: \( 563 \neq 21 \)
  3. 5363: \( 5363 \neq 21 \)
  4. 125216: \( 125216 \neq 21 \)
  5. 2564: \( 2564 \neq 21 \)

None of the provided expressions are equivalent to \( (56)_3 \), which is equal to 21.

Thus, none of the expressions (536, 563, 5363, 125216, 2564) are equivalent to \( (56)_3 \).