Which operation can be used with the augmented matrix below?
3 -2 1 15
158 15
-2 -1 3
o
o
Switch column 1 and column 2.
Multiply row 3 by 0.
Add row 2 and column 3.
Multiply row 2 by-1 and add it to row 3.

Multiply row 2 by-1 and add it to row 3.

Step-by-step explanation:

The given augmented matrix is

The permissible row operations are:

1. Switching rows

2. Multiplying a row by a nonzero constant.

3. Adding/Subtracting two rows

 Therefore the correct option is: Multiply row 2 by-1 and add it to row 3.

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

the red lines denote the population of the bacteria after 35 hours. that would be 2,409.24. the y-intercept is the blue line which is 800 because that is the starting point. the equation used to make the graph is 800(1.032)^h, where h is the number of hours.

step-by-step explanation: