0.486 is the answer can you please give me brainiest answer
1:plate 2:boundrary 3:geography 4:plate tections. I know this Bc I just took a test and made a 100% on this
1.( 2x ) ( 10x ) = 20 x²
2. -3m( m + 8 ) = -3m² - 24m
3. 4d( 2d -9 ) = 8d² - 36d
4. ( 3x + 4 ) ( x -2 ) = 3x² - 6x + 4x - 8 = 3x² - 2x -8
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5. ( 2y -1 ) ( 4y - 3 ) = 8y</span>² - 6y - 4y + 3 = 8y² -10y +3
Multiply the number by itself zero times , it's the only number which can be multiplied by any other number without changing that other number.