Elena would like to know the average height of seventh graders in her school district . She measures the heights of everyone in random sample of 29 students . The mean height of elenas sample is 61 inches , and the MAD (mean absolute deviation) is 2 inches
Select all the true statements . Make your selections bold .
A ) the median height of the sample must be between 59 and 63 inches .
B ) another random sample of 20 students is likely to have a mean between 57 and 65 inches .
C ) the mean height of these 20 students is likely to be the same as the mean height of all students district .
D ) the mean height of these 20 students is likely to be the mean height of second random sample of 20 students .

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126 a. the attendance was never the same at both plays. b. the attendance was the same on day 5. the attendance was 231 at both plays on that day. c. the attendance was the same on day 13. the attendance was 295 at both plays on that day. d. the attendance was the same on days 5 and 13. the attendance at both plays on those days was 231 and 295 respectively.

Question 10 of 211 pointuse the elimination method to solve the system of equations. choose thecorrect ordered pair.10x +2y = 643x - 4y = -36a. (4,12)b. (-3, 11)c. (2,10)d. (-5, 8)

Which of the following graphs could represent a quartic function?