Question

(7x-8)×y при x=-0,5, y=0,9

Answer 1

Ответ:

-10,35

Объяснение:

(7x-8)×y=7ху-8у=7(-0,5)*0,9-8(0,9)=-3,15+8*0,9=-3,15-7,2=-10,35

Answer 2

To evaluate the expression (7x - 8) × y when x = -0.5 and y = 0.9, we substitute these values into the expression and perform the calculations.

Let's substitute the values:

(7(-0.5) - 8) × 0.9

= (-3.5 - 8) × 0.9

= (-11.5) × 0.9

To find the product, we multiply -11.5 by 0.9:

= -11.5 × 0.9

= -10.35

Therefore, when x = -0.5 and y = 0.9, the expression (7x - 8) × y evaluates to -10.35.