The expression is correct because changing the place in the multiplication operation does not affect the final result.
An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.
It is given that,the equation is 1.8 x 3) x 2.1 = 3 x (1.8 x 2.1) t
L.H.S
=(1.8×3)×2.1
=5.4×2.1
=11.34
R.H.S.
=3 x (1.8 x 2.1)
=3×3.78
=11.34
L.H.S.=R.H.S.
Thus, the expression is correct because changing the place in the multiplication operation does not affect the final result.
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B 14.1 in
C 20 in
D 28.2 in
A.
120 in2
B.
204 in2
C.
192 in2
D.
180 in2