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mash [69]
3 years ago
8

4 + 2x - 7 = 12 ?????

Mathematics
2 answers:
Rainbow [258]3 years ago
7 0

Answer:

15/2

Step-by-step explanation:

astraxan [27]3 years ago
5 0

Answer:

7.5

Step-by-step explanation:

4+2x-7= 12

2x-7= 12-4

2x= 8+7

x= 15/2

x= 7.5

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1) (3+2i)-(1-6i) <br> 2) 4i+3-6+i-1<br> 3) 5i(3-2i)<br> 4) (5+3i)(2-3i) <br> 5) (2+i)(2-i)
lutik1710 [3]

Answer:


Step-by-step explanation:

1) (3 + 2i) - (1 - 6i)

  3 + 2i - 1 + 6i

  2 + 8i

2) 4i + 3 - 6 + i - 1

   5i - 3 - 1

   5i - 4

3) 5i ( 3 - 2i )

   15i - 10i^2

   15i - 10 ( -1 )

   15i + 10

4) ( 5 + 3i ) ( 2 - 3i )

   10 - 15i + 6i - 9i^2

   10 - 9i - 9i^2

   10 - 9i - 9 ( -1 )

   10 - 9i + 9

  - 9i + 19

5) ( 2 + i ) ( 2 - i )

    4  - 2i + 2i - i^2

    4 - i^2

    4 - (-1)

    5

I hope this helps!

8 0
4 years ago
Read 2 more answers
Brandon has a budget of $58 to spend on clothes. The shirts he want to buy are on sale $9 each, and a pair of pants he wants cos
Sauron [17]
58 <span>≤ ($9 +<em> t</em> ) + ($21 + <em>t </em>)

so, n </span><span>≤ (<em />$58 + <em>t</em> ) + ($21 +<em> t</em> )</span>
6 0
3 years ago
Read 2 more answers
What gives the value of this expression -20/-4+(-15) (-2)
kompoz [17]

Answer:

\frac{-20}{-4+(-15)(-2)} = \frac{-10}{13}

Step-by-step explanation:

Given expression

           =  \frac{-20}{-4+(-15)(-2)}

           =  \frac{-20}{-4+30}

          = \frac{-20}{26}

         = \frac{-10}{13}

\frac{-20}{-4+(-15)(-2)} = \frac{-10}{13}

8 0
3 years ago
Heck did I do wrong!?!?! IXL sucks
zysi [14]

Answer:

∠G, ∠HGI, ∠IGH

Step-by-step explanation:

» <u>Concepts</u>

To name an angle, you MUST include the vertex either in the middle or have it standing by itself. To clarify, you can either call this angle ∠G, ∠HGI, or ∠IGH because they all include the vertex, G, in the middle or by itself. You put ∠HIG, which is incorrect because the vertex <u>is not </u><u>I</u>.

<u></u>

6 0
3 years ago
Can y’all help me me pls I don’t want my dad to whoop me with a belt
Viefleur [7K]

Answer:

pretty sure its D. (200x^3)

hope this helps :) plz brainliest if wrong then don´t

Step-by-step explanation:

7 0
3 years ago
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