Which expression represents the distance between 1.8 and 9.4 on the number line? drag and drop the correct expression in the box 1. |1.8-(9.4)| 2. |1.8+9.4| 3. | 9.4+1.8| 4. |9.4-1.8|

option-1

option-2

Step-by-step explanation:

Suppose, we have to find distance between x=a to x=b

so, we get distance

distance = b-a

or we can also write as

distance =|b-a|

or

distance =|a-b|

we are given

the distance between 1.8 and 9.4 on the number line

we can write distance as

distance =|9.4-1.8|

distance =|1.8-(9.4)|

so, option-1 and option-4Answer

- 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

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925