Question

T+2,9t-2,8t+22,4 при t=4,6

Answer 1

Ответ:

4,6+2,9×4,6-2,8×4,6+22,4 дальше сделаешь по калькулятору

Answer 2

To evaluate the expression T+2(9t)-2(8t)+22.4 when t=4.6, we'll substitute t with the given value and perform the arithmetic operations.

T + 2(9t) - 2(8t) + 22.4

Now, let's replace t with 4.6:

T + 2(9 * 4.6) - 2(8 * 4.6) + 22.4

Now, calculate the values inside the parentheses:

T + 2(41.4) - 2(36.8) + 22.4

Next, perform the multiplications:

T + 82.8 - 73.6 + 22.4

Now, add and subtract the numbers:

T + 9.2 + 22.4

Finally, combine like terms:

T + 31.6

So, when t=4.6, the expression T + 2(9t) - 2(8t) + 22.4 equals T + 31.6.