<span>There are 1 billion 9 digit numbers (000,000,000 through 999,999,999). There are 45 different combinations of two different numerals (10 x 9 divided by 2). There are 512 (2 to the 9th power) different permutations for any two numbers to be used in a 9 digit number</span>
6 √3. Short leg is half the hypotenuse is 6 so x = long leg so x= short leg times √3
You can combine the -6 and -1 to -7. So the expression can be simplified as -3x-7
D. 4 This is where the exponential line on the graph hits the y axis.
150 divided by 25 is 6 so the answer is 6
