Mathematics, 26.03.2020 03:21 mayachojnicki

HELP, I don't understand this problem

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Mathematics, 21.06.2019 19:00, ale1910

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

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Mathematics, 21.06.2019 23:00, Kira4585

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me

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Mathematics, 22.06.2019 01:00, franklinkaylieg3873

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5

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Mathematics, 22.06.2019 01:30, treestump090

Fill in the missing exponents in each box and show how you found the answer. (4 points: 2 points for each correct answer with work shown) c. (9^4)^? =9^1 d.(5^? )^3=5^1 *question marks represent the boxes

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