Question

7/x-9y + 1 при x=2;y=4

Answer 1

Ответ:7/2-9*4+1=3,5-36+1=-31,5.все просто.

Пошаговое объяснение:

Answer 2

Ответ : -31,5
7/2-9*4+1= 3,5 - 36+1=-31,5

Answer 3

To evaluate the expression 7/x - 9y + 1 when x=2 and y=4, you simply substitute the given values of x and y into the expression and perform the arithmetic.

Let's calculate:

7/x - 9y + 1

Substitute x=2 and y=4:

7/2 - 9 * 4 + 1

Now, perform the operations step by step:

7/2 = 3.5 (division)

9 * 4 = 36 (multiplication)

Now, the expression becomes:

3.5 - 36 + 1

Now, subtract 36 from 3.5:

3.5 - 36 = -32.5

Finally, add 1:

-32.5 + 1 = -31.5

So, the value of the expression 7/x - 9y + 1 when x=2 and y=4 is -31.5.