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Softa [21]
3 years ago
15

What are the solutions of the quadratic equation 0 = -XP –

Mathematics
1 answer:
klio [65]3 years ago
5 0

Answer:

-2 and -4

Step-by-step explanation:

The equation 0=-x^{2}-6x-8

Can be written as x^{2} +6x+8=0

Lets apply quadratic equation solver:

that is. x=\frac{-b+/-\sqrt{b^{2}-4ac } }{2a}

where a=1, b=6, c=8

We have \frac{-6+/-\sqrt{36-32} }{2}

The solution is then

x= -2 and x= -4

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Plz help me w this !!
larisa [96]

Answer:

sum of angles in atriangle=180°

Step-by-step explanation:

w-45°+w-37°+w+19°=180°(sum of angles in a triangle)

3w=180°+45°+37°-19°

3w=243°

w=81°

7 0
3 years ago
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4 0
3 years ago
What is 10÷5/8 in a math order.
Sedbober [7]
If you would like to calculate <span>10÷5/8, you can do this using the following steps:

</span><span>10÷5/8 = (10/5)/8 = 2/8 = 1/4 = 0.25

The correct result would be 1/4 or 0.25.</span>
3 0
3 years ago
If f(x) = -2x^2 + 3 then f(-5) = ??
Sladkaya [172]

F(-5)= -2x^2+3

-5*-5=25

25*-2=-50

F=-50+3

F=-47

5 0
3 years ago
Complete the equation of the line through (-8-2) and (-4-6)
Kisachek [45]

Answer:

Step-by-step explanation:

since you are given two points use the point- slope formula and the slope formula

y-y1 = m( x -x1)   and  m = y2 -y1 / x2 - x1        

find the slope m, 1st

p1 = (x1,y1)  given (-8,-2)

p2 = (x2,y2) given (-4,-6)

m = -6-(-2) / -4-(-8)

m = -6+2 / -4+8

m = -4 / 4

m = -1  :)

now use the slope you just found and the point-slope with either given point.. pick one.. which ever seems easier... they seem about the same to me

y - (-8) = -1(x-(-2))

y+8 = -1(x+2)

y+8 = -x-2

y = -x-2-8

y= -x-10

and your done :)

4 0
3 years ago
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