To solve the system of linear equations 3x-2y=4 and 9x-6y=12 by using the linear combination method, Henry decided that he should first multiply the first equation by –3 and then add the two equations together to eliminate the x-terms. When he did so, he also eliminated the y-terms and got the equation 0 = 0, so he thought that the system of equations must have an infinite number of solutions. To check his answer, he graphed the equations 3x-2y=4 and 9x-6y=12 with his graphing calculator, but he could only see one line. Why is this?

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general 9 months ago 3390

Urgent help needed 8 math questions please help asapQuestion 1 :What is the mean of the following set of data? Round your answer to two decimal places.66, 81, 60, 72, 79, 83, 60, 92, 68Question 1 options:A) 77.41B) 75.34C) 70.59D)73.44Question 2What is the mean of the following set of data? Round your answer to two decimal places.34, 23, 12, 11, 11, 25, 25, 26, 25, 27, 30Question 2 options:A )22.63B) 20.75C) 24.90D) 19.15Question 3 What is the mode of the following set of data?34, 23, 12, 11, 11, 25, 25, 26, 25, 27, 30Question 3 options:A) No modeB) 25C) 11D)11 and 26Question 4Find the mode of the following set of data.23, 50, 49, 48, 49, 32, 37, 40, 41, 42, 41, 41, 43Question 4 options:A) 49B) 41C) 40D) No modeQuestion 5 What is the median of the following set of data?34, 56, 22, 49, 37, 20, 61, 48, 22Question 5 options:A) 34B) 37C)22D)61Question 6 What is the median of the following set of data?130, 110, 121, 141, 137, 136, 103, 144Question 6 options:A) 130B) 144C) 133D) 137Question 7Find the range of the following set of data.23, 50, 49, 48, 49, 32, 37, 40, 41, 42, 41, 41, 43Question 7 options:A) 43B) 30C) 73 D) 27 Question 8 For the data below, which of the following are true? Choose all that apply.66, 71, 75, 83, 88, 89, 90, 91Question 8 options:A) no modeB) median: 83C) range: 25D) mean: 82.4

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general 9 months ago 8295