BaileyElizabethRay
16.11.2020 •
Mathematics
Hello, I need help with this! also could you please explain how you did it, thank you! :)
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Ответ:
-7
Step-by-step explanation:
-2(4 - 5 ) - 1(2 - 5)^2
-2(-1) - 1(-3)^2
2 - 1(9)
2 - 9
-7
Hope this helps. Pls give brainliest.
Ответ:
two negatives cancel out into a positive
-7 3/10 + 4 4/5
you need to have the same denominators
3/10
4/5 > multiply numberator and denominator by 2 = 8/10
-7 3/10 + 4 8/10 = -2 1/2
-2 1/2 is your answer