All categories

3 years ago

I need some help, anyone with a explanation on how to do this any help is appreciated:)

Mathematics

1 answer:

MrRa [10]3 years ago

3 0

Answer:

12.6

Step-by-step explanation:

Pythagorean theorem: a^2+b^2=c^2

you are given c & b you have to find a so

c^2-b^2=a^2

196-36=160

take the square root of 160

12.6 is the final answer :)

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3 years ago

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4 years ago

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If y varies directly with x when y=1/3 and x = 12, find x if y is 4.

Nikitich [7]

Answer:

x = 144

Step-by-step explanation:

y α x

we introduce a constant 'k' when changing from α to =.

i.e y = kx

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4 years ago

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Gre4nikov [31]

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Step-by-step explanation:

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=27%3D%281%2F3%29x%2F2%5C%5C" id="TexFormula1" title="27=(1/3)x/2\\" alt="27=(1/3)x/2\\" align=

ICE Princess25 [194]

Answer:

x = 162

Step-by-step explanation:

The equation editor lets you properly write exponents, so we have to assume that your equation is supposed to be equivalent to ...

27 = x/6

27·6 = x = 162 . . . . multiply by 6

_____

On the off chance you intend ...

$27=\left(\dfrac{1}{3}\right)^{\dfrac{x}{2}}$

you can solve this by taking logarithms and dividing by the coefficient of x. Using base 3 for the logarithm may be easiest.

$\log_3{(27)}=\dfrac{x}{2}\log_3{(3^{-1})}\\\\3=-\dfrac{x}{2} \qquad\text{simplify}\\\\-6=x \qquad\text{multiply by -2}$

This version of the equation has solution x = -6.

4 0

3 years ago