C. Write down the appropriate universal set for the following: please answer it
1) {1}, {1, 2, 5}, {2, 4, 5, 7}, {1, 2, 3, 4, 5, 6, 7} 2) {1, 3, 5, 7, 9, ...}, {2, 4, 6, 8, 10, ...}
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Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato

Which of the following parabolas opens down?