3 years ago

Evaluate each expression. Order of operations 1) (-2)+(5 + 5)2

Mathematics

1 answer:

Virty [35]3 years ago

6 0

Answer:

Step-by-step explanation:

(-2)+(5 + 5)2

(-2)+(10)2

(-2)+20

-2+20=18

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Hope someone can help me with this

Norma-Jean [14]

Hi,

To find the volume of cylinder this formula is required.

$v = \pi {r}^{2} h$

To get radius you need to divide diameter with 2 like this.

$80 \div 2 = 40$

Now just put your values into formula.

$v = \pi {40}^{2} \times 130 \\ v =653451.27$

You will need 653451.27 cubic centimetres of concrete.

Hope this helps.
r3t40

7 0

3 years ago

How do I divide numbers by using long division. <br>

Vsevolod [243]

The only rule to follow is

Divide dividend by divisor and the mention the quotient and things left after remains in place of remainder

Here is a sample

$\sf\Large\qquad\quad16\\ \begin{array}{cc} \cline{2 - 2}\sf 20 )&\sf \ 327\\&\sf - 20 \downarrow\\ \cline{2-2}& \sf \ \ \ \ 127\\ &\sf \ - 120 \\ \cline{2-2} & \sf \ \007 \\ \cline{2-2} \end{array}\\\\\\ \sf Divisor \rightarrow 20 \\ \\ \sf Quotient \rightarrow 16\\\\ \sf Remainder \rightarrow 7$