Question

Обчисліть будь ласка 1) -2.5•2 2) -0,4•(-9) 3) 3/8 : (-17/9) 4) (-8):(-4)​

Answer 1

Ответ:

надіюсь що допомогла, 3 не знаю чи правильно зрозуміла

відміть як найкращу відповідь будь ласка

Answer 2

I can help you with math problems. Here is how I would solve the expressions you asked:

1) -2.5•2 = -5. This is because multiplying a negative number by a positive number gives a negative number, and the product of the absolute values is 5.

2) -0,4•(-9) = 3.6. This is because multiplying two negative numbers gives a positive number, and the product of the absolute values is 3.6.

3) 3/8 : (-17/9) = -0.198. This is because dividing by a fraction is the same as multiplying by its reciprocal, and the quotient of the absolute values is 0.198.

4) (-8):(-4) = 2. This is because dividing two negative numbers gives a positive number, and the quotient of the absolute values is 2.

You can use the online calculator to check your answers and see more steps. You can also learn more about rational expressions and how to simplify them. I hope this helps. Have a nice day.