解答
解答
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流行的例子
The sum of 4 times a number and 7 is 9You pick a card at random, put it back, and then pick another card at random. What is the probability of picking a 2 and then picking a 2?What is the 体积 of a cube with an edge length of 0.8 m?how long it will take an initial investment of 12,750 to grow to 36,975, if the account earns 11.5% interest per year, compounded quarterly. Round the solution to two decimal places.the 差集 of two numbers is equal to 6. moreover, the square of the sum of these numbers is 441. find these numbers