Encode the message
"jj sylvesterjj sylvester"
using matrix a. remember to partition the numerical message into groups of two. a=left bracket start 2 x 2 matrix 1st row 1st column 1 2nd column 2 2nd row 1st column 1 2nd column 3 end matrix right bracket
1 2
1 3
the coded message is:    

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth

What is the area of a rectangle with vertices (-8,-2), (-3,-2), (-3,-6), and (-8,-6)? units