Equation 1:Ax+By=C Equation 2:Dx+Ey=F A, B, C, D, E, and F are non-zero real numbers. Which of the following could replace equation 1 and still have the same solution? Select all that apply.A. A multiple of Equation 1.B. The sum of Equation 1 and Equation 2C. An equation that replaces only the coefficient of x with the sum of the coefficients of x in Equation 1 and Equation 2.D. An equation that replaces only the coefficient of y with the sum of the coefficients of y in Equation 1 and Equation 2.E. The sum of a multiple of Equation 1 and Equation 2.

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general 11 months ago 2803

Help please?!Lamont wants to determine his typical sprint time to run 100 meters. Which of the following methods will give him the most accurate measurement? A. Sprint the 100 meters several times throughout an hour and determine his average time to complete from the various runs. B. Sprint the 100 meters several times throughout the day and determine his fastest time from the various runs. C. Sprint the 100 meters several times throughout the week and determine his average time to complete from the various runs. D. Sprint the 100 meters several times throughout the month and determine his fastest time from the various runs.An electric company wants to determine the typical amount of energy usage for a 30-home neighborhood each month in the past year. Which of the following would give the company the most accurate measurement? A. Take the energy usage for one of the homes in the neighborhood for a year, and then multiply it by 30. B. Take the energy usage for all the homes in the neighborhood for a year, and then divide it by 12. C. Take the energy usage for three random homes in the neighborhood for the year, and then multiply it by 10. D. Take the energy usage for all the homes in the neighborhood for the year, and then divide it by 30.

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general 11 months ago 3629

Thomas is researching locations to live after high school and asks his family members about the number of different places they have lived. Let A be the set of the number of places where nine of Thomas' family members have lived after high school. A = {3, 2, 7, 8, 6, 8, 3, 4, 3}Thomas forgot that his uncle traveled with the military and has lived in 15 different places since high school. Let B represent the set of the number of places where all ten of his family members, including his uncle, have lived after high school.Select the true statement.The interquartile range of A is 0.5 more than the interquartile range of B.The mean of B is the same as the mean of A.The interquartile range of A is 1.5 less than the interquartile range of B.The mean of B is greater than the mean of A.

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general 11 months ago 1038