How to round 0.998 to the nearest hundreth

1

Step-by-step explanation:

you use the 8 to round making the 9 before it a 10, which carries over to the other 9, which also becomes a 10 and must be carried into the ones, making it 1 or 1.00

1.0

Step-by-step explanation:

To round a this number to the nearest hundredth, you must look at the previous place value. The number previous to the hundredth place is 8, which is in the thousandth place value. Now lets look at the rounding rules which are the following:

Looking at rules, the number previous to the hundredth place is 8. By looking at the rounding rules, it round the current number up by one. If you round hundredth place's number up, 9⇒10. Since it becomes ten, we must round the next place value number, in this case which is the tenth place, up by 1. Rounding the tenth place's number up by 1, we get 9⇒10. Since it is an another 10, we round the next place value number up by 1 again. In this case we are rounding the one's place by 1. Therefore, we get 1.0.

Your final answer should be 1.0 if you follow the rounding rules.

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form