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Mademuasel [1]
3 years ago
6

​{x| negative 8less thanxless than8​}

Mathematics
1 answer:
Damm [24]3 years ago
6 0

Answer:

-8 i think

Step-by-step explanation:

hope this helps :) have a nice day :) :)

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Which are the solutions of the quadratic equation x^2=-5x-3
frutty [35]
The correct answer would be \frac{-5 +/-  \sqrt{13} }{2}

In order to solve for this you must first get the equation equal to 0. 

<span>x^2=-5x-3 ----> add 5x to both sides. 
x^2 + 5x = -3 ----> add 3 to both sides.
x^2 + 5x + 3 = 0

Now knowing this we can use the coefficients of each one in descending order of power as a, b and c. 

a = 1 (because it is the coefficient to x^2)
b = 5</span> (because it is the coefficient to x)
c = 3 (because it is the end number)

Now we can plug these values into the quadratic equation. 

\frac{-b +/-  \sqrt{b^{2} - 4ac } }{2a}

\frac{-5 +/- \sqrt{5^{2} - 4(3)(1) } }{2(1)}

\frac{-5 +/- \sqrt{13} }{2}

And those would be your two answers.
5 0
3 years ago
(x³-2x²-5x-2) ÷ (x+1)
riadik2000 [5.3K]

Answer:

x2−3x−2

Step-by-step explanation:

5 0
3 years ago
Find the value of x I really need this to pass this yr.
svp [43]
It takes a while to see through this one. 
I think that's because the triangle is in a weird position.

The arrows on the two across-lines tell us that those lines are parallel.
And THAT tells us that the two triangles are similar ... the whole big triangle,
and the smaller triangle on the bottom.

If two triangles are similar, then what ?

-- Their corresponding angles are equal.  That doesn't help us in this problem.

-- Their corresponding sides are in the same ratio.  That helps us a lot !

The left side of the big triangle = 5 + 8 = 13
The left side of the small triangle          =  8

Now we know that corresponding sides of the two triangles
have the ratio of 13 to 8 .

The right side of the big triangle  =  4 + x
The right side of the small triangle = x

The ratio has to be 13/8 ,  so ===>       (4+x) / x  =  13 / 8 .

That's the tough part.  Now you take it and finish it off from here.
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3 years ago
Please answer asap
vesna_86 [32]

Answer:

(B)permits only certain substances to leave but all to enter

3 0
3 years ago
Which expression is modeled on the number line
Mice21 [21]

Answer:

D

Step-by-step explanation:

if you were to chose c you would find that to negatives make a positive and the first negative has to be there so d would be the best possible answer

7 0
3 years ago
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