If the number is 1-4 change it and everything else to 0, if it's 5-9 add one. 16 rounded to the nearest ten is 20, the 6 is between 5 and 9 so we added one the the number in front. 84.28 to the nearest dollar would be $84, since the 2 is 1-4 we changed it and the 8 to 0's. 4,680 rounded to the nearest thousand is 5,000 since the 6 is 5-9. 27.9565 to the nearest cent is 27.96 since the 6 is 5-9. :) I hope this helps :)
Step-by-step explanation:
<h3>Factorize : 9x² - y² </h3>
<h3>Applied Formula = a²- b² = (a + b ) (a - b)</h3>
<h3>9x²- 1 y² : </h3>
<h3> = (3x)²– (y)² [ (3x)² = 9x² ]</h3>
<h3> = (3x+y) (3x–y)</h3>
It is what it is, everything going okay?