Makakuha ng mabilis at pangkomunidad na mga sagot sa IDNStudy.com. Ang aming mga eksperto ay handang magbigay ng malalim na sagot at praktikal na solusyon sa lahat ng iyong mga tanong.

The square root of twice the number is subtracted from 4 and the result is 10. Find the
number​


Sagot :

Answer:

The number is 18.

Step-by-step explanation:

(1) Let x be the number

(2) Formulate the equation

[tex]4 - \sqrt{2x} = 10[/tex]

(3) Find the value of x

[tex]4 - \sqrt{2x} = 10 \\ - \sqrt{2x} = 10 - 4 \\ - \sqrt{2x} = 6 \\ { ( - \sqrt{2x} )}^{2} = {(6)}^{2} \\ 2x = 36 \\ x = 18[/tex]

(4) Check

[tex]4 - \sqrt{2x} = 10 \\ 4 - \sqrt{(2)(18)} = 10 \\ 4 - \sqrt{36} = 10 \\ 4 - ( - 6) = 10 \\ 4 + 6 = 10 \\ 10 = 10[/tex]

Note: I used -6 as the square root of 36 for 18 to be true. Otherwise, there'll be no answer.

#CarryOnLearning

>_<