A rectangular room is 3 times as long as it is wide and it’s perimeter is 56 m find the dimension of the room the length and width is ?

Width = 3x                                         So,  

Length = x                                          3w + w = 56/2 = 28

3x + x = 4x                                              

56 / 4 = 14                                            w = 7

x = 14                                                    

14 x 3 = 42                                            

42 meters                                   dimension-  7 meters

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

sas (side angle side)

aa(angle angle)

sss(side side side)

sas you have to find two sides with an angle in between

aa you find two angles because it will always add up to 180

sss find all sides

step-by-step explanation: