25 pints ⦁ Let x = 4.7 and solve both inequalities below. Show your work.
A: × + 6.2 ≥10.9 B: x - 6.2 ≤ - 5

⦁ Look at your answers to question #4. Which inequality is true or false given x = 4.7. Explain your answer.

A is true and B is false.

Step-by-step explanation:

x + 6.2 ≥ 10.9

Replace x for 4.7...

4.7 + 6.2 ≥ 10.9

10. ≥ 10.9 ( So this is true!)

x - 6.2 ≤ - 5

Replace x for 4.7...

4.7 - 6.2  ≤ -5

-1.2  is not ≤ -5 (So this is false!)

- 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

14

step-by-step explanation:

14 x 3 = 42