Solve the system of equations by finding the reduced row- echelon form of the augmented matrix for the system of equations 2x+y+z= -3 3x-5y+3z= -4 5x-y+2z= -3 a. (1,-1,-4) b.(11,-10,-41) c.(1,-1,-10) d. (11,-1,-10)

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Write the following as a base and exponent

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.