4. Our usual number system is base 10, because it strings together the digits 0-9 to form any whole number (there is a l's place, a 10's place, a 10-squared's place, etc). Hexadecimal numbers are written in base 16. This means they string together the digits 0-9 and the letters A - F to form any whole number (there is a l's place, a 16's place, a 16-squared's place, etc). For example, BD3C8 and 305A2 are two different 5-digit hexadecimal numbers. How many 9-digit hexadecimal numbers are there that have exactly 4 zeroes. (Note: Hexadecimal numbers, like our normal base 10 numbers, cannot start with a 0).

Apollo Spas services 216 hot tubs. If each hot tub needs 125 mL of muriatic acid, how many liters of acid are needed for all of the hot tubs? Enter an integer or decimal number [more..] Submit Question

How many numbers between 50 and 600, 000, including endpoints, are divisible by 2 or 5?

Hey what’s the answer

Where did the number 11480 come from?