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netineya [11]
3 years ago
12

X² + 9x +22 = 0 anyone know what this is

Mathematics
1 answer:
Mrrafil [7]3 years ago
8 0
-7 i’m not completely sure though
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According to the synthetic division below, which of the following statements are true? Check all that apply. -5(2 6 -8) -10 20 _
Sunny_sXe [5.5K]
***(2x²+6x-8):(x+5)=2x-4
     -2x²-10x
    ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻
         -4x-8
          4x+20
    ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻
              12 ⇒ A. statement is true.

***When x=-5⇒2*(-5)²+6*(-5)-8=12⇒B. statement is true.

***2x²+6x-8 can also be written as (x+5)*(2x-4)+12 so (x+5) is a factor of 2x²+6x-8⇒C. statement is true.

***When x=5⇒2*5²+6*5-8=72 is not 12⇒D. statement is not true

***
(2x²+6x-8):(x+5)=2x+16
     -2x²+10x
    ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻
              16x-8
             -16x+80
        ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻
                     72⇒F. statement is not true

**
*E. statement is not true.





8 0
3 years ago
Read 2 more answers
Peri spent 40% of her money on books and 50% of the rest on toys. She has $21. How much money did she have first.
Vlad1618 [11]
40/100 + 50/100 = 90/100

il lui reste  10/100 ou 21 $

10 % = 21 $
100 % = 210 $
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6 sides on a dice 1-6 numbers probability is 4/6 or 2/3
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3 years ago
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nikdorinn [45]
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8 0
3 years ago
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How much property tax must be paid each month when the property tax is 1,644 a year
tatyana61 [14]
You would have to divide 1644 by 12 to find the monthly rate. 1644/12=137, so property tax per month is 137.
3 0
3 years ago
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