PoPFli21
05.11.2020 •
Mathematics
Evaluate the following expressions: Show all your work. a. 4 x (- ½) x 9 x (-1) x 20 x (- 1/5) b. 4 ÷ (-2) x 3 x (-3) ÷ (-9)
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Ответ:
-2 x 9 x (-1) x 20 x (-1/5)
-18 x (-1) x 20 x (-1/5)
18 x 20 x (-1/5)
360 x (-1/5)
-72
b. 4/(-2) x 3 x (-3) / (-9)
-2 x 3 x (-3) / (-9)
-6 x (-3) / (-9)
18 / -9
-2
Ответ: