Mia and Isak make designs using dominoes. Mia uses 6A79 dominoes in her design. Isak uses 5,922 dominoes in his design. Mia and Isak calculate the
number of dominoes they use in all as shown below, but Mia makes a mistake
in her addition. Describe Mia's mistake. How many dominoes do they use in all?

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)

answer:

step-by-step explanation:

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.