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Afina-wow [57]
3 years ago
15

What is the equation of the following line? Be sure to scroll down first to see

Mathematics
2 answers:
PolarNik [594]3 years ago
6 0

Answer:

y=-3x

Step-by-step explanation:

we know that the equation of the line is:

y=mx+b

m= slope= (y2-y1)/(x2-x1)

we have two points giver from the graph:

point 1: (0,0)

point 2: (3,-9)

we to find the slope:

m=(-9-0)/(3-0)

m=-3/3

m=-3

we need to find "b"

using the point (0,0)

we have

0=0x+b

so we have b=0

finally we have

y=-3x+0

y =-3x

CaHeK987 [17]3 years ago
3 0

Answer:

B

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (3, - 9) ← 2 points on the line

m = \frac{-9-0}{3-0} = \frac{-9}{3} = - 3

Since the line passes through the origin then c = 0

y = - 3x + 0, which is simply

y = - 3x → B

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I need help on this plz
balandron [24]

Answer:

(2) angle1 = 139, angle2 = 41, angle4 = 41, angle5 = 139, angle6 = 41, angle7 = 139, angle8 = 41

(3) angle1 = 150, angle2 = 30, angle4 = 30, angle5 = 150, angle6 = 30, angle7 = 150, angle8 = 30

Step-by-step explanation:

All angle are either equal to each other or supplementary.  I use corresponding angles and vertical angles to prove each of the above.

For number 3, angle 3 and angle 8 are supplementary, so they add up to 180:

8x +70 + (4x - 10) = 180

12x + 60 = 180

12x = 120

x = 10

So if x = 10, then 8x + 70 = 8(10) + 70 = 150

That means all angles are either 150 or 30 for number 3.

3 0
3 years ago
So if I buy something for $36.97 and the and buy something else for $9.48 what will be the Total all Together?​
Paul [167]

Answer:

36.97+9.48

=$46.45

Step-by-step explanation:

hope it helps

5 0
3 years ago
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Ratling [72]

I got 70

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=8!/((8-4)!*4!)

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Step2247 [10]

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2.multiply and divide (left to right) 1/3

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