Question

0,9x(0,8x(-1/5(-21/25)

Answer 1

Ответ:

Пошаговое объяснение:

0,9x(0,8x(-1/5(-21/25) =  0,72х²*0,2*0,84  = 0,12096х²

Answer 2

To solve the expression 0.9x(0.8x(-1/5(-21/25)), we'll break it down step by step:

First, let's simplify the innermost expression within the parentheses: -1/5(-21/25). To multiply fractions, you multiply the numerators together and the denominators together. So, -1/5 multiplied by -21/25 can be calculated as follows:

(-1/5) * (-21/25) = (1 * 21) / (5 * 25) = 21/125

Now, we can substitute this value back into the original expression:

0.9x(0.8x(21/125))

Next, we'll multiply 0.8 by 21/125:

0.8 * (21/125) = 16.8/125

Substituting the new value:

0.9x(16.8/125)

Finally, we'll multiply 0.9 by 16.8/125:

0.9 * (16.8/125) = 15.12/125

So, the simplified expression is 15.12/125.