Acertain bcd-to-decimal decoder has four input lines and 10 output lines. if four input lines are capable of 16 possible combinations and only 10 output combinations are required, why have four inputs?

Are the corresponding angles congruent? explain why or why not.

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)