Question

-1,8x+91xy²+32xy²,если x = 4 и y=0,2

Answer 1

Ответ:312/25 или 12 целых 12/25 или 12,48

Объяснение:

Answer 2

To evaluate the expression -1.8x + 91xy^2 + 32xy^2 when x = 4 and y = 0.2, we substitute the given values into the expression.

Substituting x = 4 and y = 0.2, we have:

-1.8(4) + 91(4)(0.2)^2 + 32(4)(0.2)^2

Simplifying the expression, we get:

-7.2 + 91(4)(0.04) + 32(4)(0.04)

-7.2 + 91(0.16) + 32(0.16)

-7.2 + 14.56 + 5.12

7.44

Therefore, when x = 4 and y = 0.2, the expression -1.8x + 91xy^2 + 32xy^2 evaluates to 7.44.