Mathematics, 24.11.2019 10:31 davidsouth444
Hee sun wants to estimate the average world length in a book. she randomly chooses 20 words in the book, as shown. based on this sample, which is the best estimate of the mean word length in the book? (i chose d, but i’m not sure if i’m correct.)
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Mathematics, 22.06.2019 01:00
Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.
Answers: 1
Hee sun wants to estimate the average world length in a book. she randomly chooses 20 words in the b...
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