Solve by augmented matrix (GJ)
2x + 3y – 4z = 1
4x + y + 2z = -3
pls help!!

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Based on the graph, what is the initial value of the linear relationship? a coordinate plane is shown. a line passes through the y-axis at -2 and the x-axis at 3.