I needanswer ASAP Which description best describes the solution to the following system of equations? y = –2x + 9 y = –x + 8 Lines y = –2x + 9 and y = –x + 8 intersect the x-axis. Lines y = –2x + 9 and y = –x + 8 intersect the y-axis. Line y = –2x + 9 intersects the line y = –x + 8. Line y = –2x + 9 intersects the origin.

The biologist has a second culture to examine. she knows that the population of the culture doubles every 15 minutes. after 1 hour and 15 minutes, her assistant found that 80,000 bacteria were present. a) what was the size of the initial population? b) predict the size of the culture at t=3 hours. what was the size of the population at 40 minutes? explain and justify your answers. c) create a graph of the population as a function of time. find an equation that can be used to predict the size of the population at any time t. d) examine the rate at which the bacteria culture is growing. how fast is the culture growing after 1 hour? after 1.5 hours? after 2 hours? use a time interval of h = 0.01 hours to estimate these rates. interpret these rates in terms of the context of the problem situation. how do these three rates compare?

The seventh-grade students at charleston middle school are choosing one girl and one boy for student council. their choices for girls are michaela (m), candice (c), and raven (r), and for boys, neil (n), barney (b), and ted (t). the sample space for the combined selection is represented in the table. complete the table and the sentence beneath it.

Line ab contains points a(4, 5) and b(9.7). what is the slope of ab?