Find the volume of iron required to make an open box whose external dimensions are 36 cm x 25 cm x 16.5 cm , the box being 1.5 cm thick throughout. If 1 cm of iron weigh 8.5 grams, find the weight of the empty box in kilograms.

- 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

congruent segments

step-by-step explanation:

57.09 minus 7.0435 equals

step-by-step explanation:

just subtrach them both and u get the answer of 50.0465

i dont know what you want me to answer for this but im guessing 2: 11?