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3 years ago

11

Which expression is equal to 20 - (8 + 5) + 4?

1 answer:

n200080 [17]3 years ago

8 0

We need to follow PEMDAS

first is Parenthesis, which we have (8+5)

8+5=13 and we are left with 20-(13)+4

Distribute the negative to 13 to get 20-13+4

Addition comes first so add 13+4 to get 17

And then solve 20-17

Your answer is 3.

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tangare [24]

$\bf \textit{area of a sector of a circle}\\\\
A=\cfrac{\theta\pi r^2}{360}\qquad 
\begin{cases}
\theta=\textit{angle in degrees}\\
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\end{cases}
\\\\\\
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3 years ago

Need help asap show your work

Monica [59]

To find the volume we use an equation:

volume = length x width x height

Since this shape is a cube, you only need to know one side to find the volume since all of the sides are equal.

So all you need to find the volume is to multiply 4(1/2) which I am going to simplify to 4.5, is plug it into the equation.

volume = 4.5 x 4.5 x 4.5

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Hope this helps :)

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