Plants are set up in a greenhouse. 1/3 of potted plants are grown under red light, 1/3 under green light, and 1/3 under natural light. plant biomass is measured at the beginning of the experiment and after a 28 day period. in this study, is the type of light an independent or dependent variable?

Independent variable.

Step-by-step explanation:

In order to be able to recognize the dependent and independent variables you just have to read the problem and see which one depends on the other, in this case the light is the independent variable because depending on which light is installed the biomass would grow differently, not the other way around. So since the biomass depends on which light is installed, the light is independent.

sorry, i can't understand your question. will later if you describe more clearly!

: )

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b