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Find the value of x. Round the answer to the nearest tenth
if necessary


Find The Value Of X Round The Answer To The Nearest Tenth If Necessary class=

Sagot :

Answer:

a = 6.9

Step-by-step explanation:

When calculating the side of a triangle, use pythagoras theorem:

[tex]a^2 + b^2 = c^2[/tex]

Seeing as you know one side and the hypotenuse, rearrange to make a or b the subject:

[tex]a^2 = c^2 - b^2[/tex]

Plug known values in:

[tex]a^2 = 8^2 - 4^2\\a^2 = 64 - 16\\a^2 = 48[/tex]

Square root both sides to find a:

[tex]\sqrt{a^2} = \sqrt{48}\\a = \sqrt48\\a = 6.928\\a = 6.9[/tex]

Hope this helps!