2 years ago

Find the discrimnate of -x^2+2x-8=0

Mathematics

2 answers:

Paladinen [302]2 years ago

8 0

-28 is the answer to ur question

Lisa [10]2 years ago

6 0

Answer:

-28

Step-by-step explanation:

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3 years ago

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Categorize each of the following equations as a linear equation in one variable or not.

Kaylis [27]

6b+4=2 has one variable
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3 years ago

I'm unsure of what the answer to this is, I need help.

Zigmanuir [339]

Answer:

I think it would be A

Step-by-step explanation:

Because 9/6 is 1.5 and when you do 3/2 it is also 1.5.

I hope this helps

4 0

3 years ago

If BA [a= (-2,-3) b= (1,2)] is extended all the way through A creating a BF and A becomes the midpoint of BF, then what are the

Irina18 [472]

Answer:

(-5,-8)

Step-by-step explanation:

If M(x,y) is the midpoint of the segment CD, where $C(x_1,y_1),\ D(x_2,y_2),$ then

$x=\dfrac{x_1+x_2}{2}\\ \\y=\dfrac{y_1+y_2}{2}$

You are given two points A(-2,-3) and B(1,2), let point F be the point with coordinates (x,y). Yuo know, that point A is the midpoint of BF, then

$x_A=\dfrac{x_B+x_F}{2}\\ \\y_A=\dfrac{y_B+y_F}{2}$

Substitute known coordinates:

$-2=\dfrac{1+x}{2}\Rightarrow 1+x=-4,\ \ x=-5\\ \\-3=\dfrac{2+y}{2}\Rightarrow 2+y=-6,\ \ y=-8$

So, point F has coordinates (-5,-8)

7 0

3 years ago

3(x - 4) + 5 - x= 2x - 7<br> how many solutions are there to this equation?

quester [9]

3x -12 + 5 -x = 2x -7

2x-7 = 2x -7

Infinitely many solutions

Hope this helps!

5 0

3 years ago

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