Ai đó giải giùm mình bài tập trong file dc ko ạ, thank ạ
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Mathematics, 21.06.2019 13:50
Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?
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Mathematics, 21.06.2019 14:00
The line y = x + passes through (−3, 7) and is parallel to y = 4x − 1.
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Mathematics, 21.06.2019 20:00
Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0
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Mathematics, 21.06.2019 20:00
If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.
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