If a b and c are nxn invertible matrices does the equation.

Can someone plz me and put everything in your own words

Carlo is wondering what causes plants to grow at different rates. carlo’s hypothesis is “plants will grow more when the day is longer.” what would be the difference between the test group and the control group in this experiment? type of soil type of plants exposure to sunlight method for measuring the growth

Which of the following always exist between two objects having mass ● elastic force ● contact force ●gravitational force ●magnetic force