Mathematics, 25.04.2021 14:00 mng32
The mean of 12 numbers is 20 and the mean of another 8 numbers is 25 find the mean of the 20 numbers
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Which math sentence can be used to determine if the triangle is a right triangle?
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The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103
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What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²
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Mathematics, 21.06.2019 22:50
Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.
Answers: 1
The mean of 12 numbers is 20 and the mean of another 8 numbers is 25 find the mean of the 20 numbers...
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