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Helen [10]
3 years ago
13

What are the roots of -12x2 + 11x − 3 = 0?

Mathematics
1 answer:
Nataly_w [17]3 years ago
5 0
-12x² + 11x - 3 = 0
x = <u>-(11) +/- √((11)² - 4(-12)(-3))</u>
                        2(-12)
x = <u>-11 +/- √(121 - 144)</u>
                   -24
x = <u>-11 +/- √(-23)
</u>              -24
x = <u>-11 +/- i√(23)</u>
             -24
x = <u>-11 + i√(23</u>)                x = <u>-11 - i√(23)</u>
            -24                                   -24
x = ¹¹/₂₄ - 0.0416√(23)      x = ¹¹/₂₄ + 0.0416√(23)
<u />
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Answer:

there are twelve total combinations

Step-by-step explanation:

just by looking at the problem though,

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6 0
3 years ago
Which simplified expression matches the set of tiles shown?
notka56 [123]

Answer:

The expression  - x² - x + 2  and   - x² + x + 2  matches the set of tiles

Step-by-step explanation:

Given four expression as :

A ) - x² - x + 2

solving by mid term breaking

Or,  - x² - 2 x + x + 2

Or,  - x ( x + 2 ) + 1 ( x + 2 )

or, ( x + 2 ) ( - x + 1 )

B )   x² - x + 2

solving by mid term breaking

Or,   x² - 2 x + x + 2

or,  x ( x - 2 ) + 1 ( x + 2 )

So, the expression will not break

C )  - x² + x + 2

solving by mid term break

Or,  - x² + 2 x - x + 2

or,  - x ( x - 2 ) - 1 ( x - 2 )

or,  ( x - 2 ) ( - x - 1 )

D )  x² + x + 2

solving by mid term break

Or, ) x² + 2 x - x + 2

Or,   x ( x + 2 ) - 1 ( x - 2 )

so, The expression will not break

Hence The expression  - x² - x + 2  and   - x² + x + 2  matches the set of tiles answer

6 0
3 years ago
How many solutions does this equation have? 3x + 2 = 3x + 2
kotykmax [81]

Answer:

There are no solutions to this equation because we will end up in 0=0 or if we do other methods, you will get something = 0

Hope it helps :)

5 0
3 years ago
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pochemuha

Answer:

11 x1 + 16 x2 + 25 x3 = 971

15 x1 + 22 x2 + 8 x3 = 1,104

9 x1 + 12 x2 + 17 x3 = 730

Step-by-step explanation:

Right on edg.

5 0
3 years ago
Read 2 more answers
PLEASE HELP Use the rules of exponents to simplify the expressions. Place a final answer in fraction form. (-1/2)to the power of
Len [333]

Answer:

-1/32.

Step-by-step explanation:

(-1/2)^3 * (-1/2)^2

= -1/8 * 1/4

= -1/32.

5 0
4 years ago
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