Mark Bellezza
9.2K posts


@Math_World_ b^2 + 144=400, subtract 144 both sides—> b^2=256 so b=Sqrt 256=16 —> 36+144=x^2 —> 180=x^2 so 13.42 cm = x
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@Old_SchoolEddie That sounds about right- most common brands back in my heyday.
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@Kristinartz I know of them. But I never knew anyone who had one.
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@MathGuyTFL Add 5 to both sides—> Sqrt(3x)=6, square both sides—> 3x=36, divide both sides by 3 —> x=36/3=12
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@mathtech789 Add the 5^x s —> 2(5^x)=10, divide both sides by 2 —> 5^x=5 so x=1 so 5^(1+2)=125
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