A sector with a radius of 8 cm has an area of 56 pi cm^ 2

to complete this square you have to rotate about the origin 270 degrees clockwise.

a 90 degree rotation across the the origin followed by a reflection across the x-axis.

step-by-step explanation:

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.