Question

0,4y²-1 при y=5помогите​

Answer 1

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Answer 2

To evaluate the expression 0.4y² - 1 when y = 5, simply substitute the value of y into the expression and perform the calculations:

0.4y² - 1

Substitute y = 5:

0.4 * (5)² - 1

Now, calculate the value:

0.4 * 25 - 1

10 - 1

The result is:

9