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Mama L [17]
3 years ago
11

Evaluate [(21 + 6) − 3^2] ÷ 9 ⋅ 2.

Mathematics
2 answers:
Vlada [557]3 years ago
6 0
 [(21 + 6) − 3^2] ÷ 9 ⋅ 2=[(27) − 9] ÷ 9 ⋅ 2
=18 ÷ 9 ⋅ 2
= 2 . 2
= 4
Talja [164]3 years ago
6 0
[(21 + 6) − 3^2] ÷ 9 ⋅ 2

= [27 − 3^2] ÷ 9 ⋅ 2

= [27 − 9] ÷ 9 ⋅ 2

= 18 ÷ 9 ⋅ 2

= 2 ⋅ 2

= 4

Hope it helps!
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tensa zangetsu [6.8K]

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6 0
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4 0
2 years ago
Simplify each expression by distributing and combined bf like terms (SHOW WORK) please
GarryVolchara [31]

Answer:

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Step-by-step explanation:

<em>Given</em><em>,</em>

<em>-</em><em>4</em><em> </em><em>(</em><em>8</em><em> </em><em>-</em><em> </em><em>c</em><em> </em><em>)</em><em> </em><em>-</em><em> </em><em>(</em><em>3</em><em>c</em><em> </em><em>+</em><em> </em><em>7</em><em> </em><em>)</em>

<em>=</em><em> </em><em>-</em><em>4</em><em> </em><em>(</em><em> </em><em>-c </em><em>+</em><em> </em><em>8</em><em> </em><em>)</em><em> </em><em>-</em><em> </em><em>(</em><em>3</em><em>c</em><em> </em><em>+</em><em> </em><em>7</em><em> </em><em>)</em>

<em>=</em><em> </em><em>4</em><em>c</em><em> </em><em>-</em><em> </em><em>3</em><em>2</em><em> </em><em>-</em><em> </em><em>(</em><em> </em><em>3</em><em>c</em><em> </em><em>+</em><em> </em><em>7</em><em> </em><em>)</em>

<em>=</em><em> </em><em>4</em><em>c</em><em> </em><em>-</em><em> </em><em>3</em><em>2</em><em> </em><em>-</em><em> </em><em>3</em><em>c</em><em> </em><em>-</em><em> </em><em>7</em>

<em>=</em><em> </em><em>(</em><em> </em><em>4</em><em> </em><em>-</em><em> </em><em>3</em><em> </em><em>)</em><em>c </em><em>+</em><em> </em><em>(</em><em> </em><em>-</em><em>3</em><em>2</em><em> </em><em>-</em><em> </em><em>7</em><em> </em><em>)</em>

<em>=</em><em> </em><em>c </em><em>+</em><em> </em><em>(</em><em> </em><em>-</em><em>3</em><em>2</em><em> </em><em>-</em><em> </em><em>7</em><em>)</em>

<em>=</em><em> </em><em><u>C </u></em><em><u>-</u></em><em><u> </u></em><em><u>3</u></em><em><u>9</u></em>

<em><u>hope </u></em><em><u>this </u></em><em><u>answer </u></em><em><u>helps </u></em><em><u>you </u></em><em><u>dear!</u></em><em><u> </u></em><em><u>take </u></em><em><u>care!</u></em>

8 0
2 years ago
Which of the following is a solution of x2 + 2x + 8? (1 point)
Mrrafil [7]

<u>Answer</u>

−1 + i times the square root of 7


<u>Explanation</u>

x² + 2x + 8

I will use the complete square method to find the value of x.

x² + 2x + 8

x² + 2x = -8

x² + 2x + (2/2)² = -8 + (2/2)²

x² + 2x + 1 = -7

(x + 1)² = -7

x + 1 = √(-7)

x = √(-7) - 1

    = i√7 - 1

   = -1 + i√7

<em>−1 + i times the square root of 7 </em>


4 0
3 years ago
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