Clay learned that solids have a definite shape. now he measured the mass of a bead. the bead has a mass of 10 grams. he estimates that 10 beads will have a mass of 1 kilogram. is he correct. explain

Incorrect

1000g=1kg

Therefore we would need 100 beads with a mass of 10g to estimate a total mass of 1kg or 1000g

So the estimate of 10beads at 10g each is only about 100g or 0.1kg or 1/10kg

18a

step-by-step explanation:

simply because it is. it's the highest common factor

- 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