chell6170

22.01.2021 • 

Mathematics

A student’s work to simplify a radical is shown below. Select the statement which best applies to the sample mathematical work. ^3 square root 54 =^3squre root 27•2
^3squre root 27•2 = 3^3 square root 2
Thus, 3 square root 54 =3^3 square root 2

A.
The equality ^3 square root 54 = ^3 square root 27•2 is incorrect or invalid.
B.
Removing the 27 from under the radical in the second step is incorrect or invalid.
C.
The work shown above is correct, however 3^3 square root 2 May be simplified further.
D.
The work shown above is correct, and 3^3 square root 2 may not be simplified further

Ответ:

sailormaries7101

27.09.2022

Mathematics

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Well, it goes 5 inches per second so after 4 seconds it is 4 times 5 =20 inches under the surface,  add that to 5 feet and you get 6 ft and 8 inches

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