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schepotkina [342]
2 years ago
11

The total surface area of a cube is 384cm3 the length of the edge of the cube is?​

Mathematics
1 answer:
Troyanec [42]2 years ago
4 0
<h3>Using the formula\: \:A  = 6 {a}^{2}</h3>

Solving for a

<h3>a =  \sqrt{ \frac{A}{6} }  \\  =  \sqrt{ \frac{384}{6} }  \\  = 8cm</h3>
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Answer:

y=4/3+19/3

Step-by-step explanation:

When it asks for perpendicular it means your focusing on the slope.

Perpendicular means opposite of the current slope, so flip it and change the sign (-3/4 changes to 4/3). Next you will use the equation (y-y1)=m(x-x1)

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x1=the x value given

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(y-1)=4/3(x+4)     Since the x point is minus a negative we get to change the sign to a positive. Next distribute the 4/3 to each term in the parenthesis.

y-1=4/3(x)+4/3(4)

y-1=4/3x+16/3     Now we add the one to both sides.

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\frac{1}{1} x\frac{3}{3}=\frac{3}{3}       Now we can add this to the 16/3

\frac{16}{3} +\frac{3}{3}=\frac{19}{3}  We can now put this back into our equation.

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Answer:

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Step-by-step explanation:

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