Mathematics: Please help thank you. Solve the following equation algebraically: x = 20 a. 4.47 b. -3.97, 3.97 C. -10, 10 d. 4.47, 4.47 Please select the best answer from the choices provided A B Mark this and return SU

90 suitcases because 3/27 is 1/9 and 1/9 of 810 is 90...

Please help thank you. Solve the following equation

aksambo4707

12.02.2022

Option D

Step-by-step explanation:

Whenever we take a square root of a number the ± sign is with it like here in the question

$x^2=20\\\\Apply\ square\ root\ on\ both\ sides\\sqrt{x^2}=\sqrt{20} \\\\The\ square\ cancels\ out\ with\ the\ root\x=\sqrt{20}$

And then x = ±4.47 which means x has two values one is +4.47 and the other is -4.47 so Option D is our answer.

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