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trapecia [35]
2 years ago
15

Which graph shows a negative slope and a positive y-intercept?

Mathematics
1 answer:
Likurg_2 [28]2 years ago
7 0

Answer: where are the graphs?

Step-by-step explanation:

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Apples are on sale for $3.12 per kilogram is the total cost of apples proportional to the total mass?​
zloy xaker [14]

Answer:

yes

Step-by-step explanation:

(there really isn't much else to say, it's quite simple)

5 0
3 years ago
The three lines given below form a triangle. Find the coordinates of the vertices of the triangle.
LenKa [72]

Answer:

  • (3, 5), (1, 2) and (5, 1)

Step-by-step explanation:

Make three systems with pairs of lines and solve them to work out the vertices.

1) <u>Line 1 and line 2</u>

  • -3x + 2y = 1
  • 2x + y = 11

<u>Double the second equation and subtract equations:</u>

  • -3x + 2y - 2(2x + y) = 1 - 2(11)
  • -3x - 4x = 1 - 22
  • -7x = - 21
  • x = 3

<u>Find y:</u>

  • 2*3 + y = 11
  • 6 + y = 11
  • y = 11 - 6
  • y = 5

The point is (3, 5)

2) <u>Line 1 and line 3</u>

  • -3x + 2y = 1
  • x + 4y = 9

<u>Triple the second equation and add up equations:</u>

  • -3x + 2y + 3(x + 4y) = 1 + 3(9)
  • 2y + 12y = 1 + 27
  • 14y = 28
  • y = 2

<u>Find x:</u>

  • x + 4*2 = 9
  • x + 8 = 9
  • x = 1

The point is (1, 2)

3) <u>Line 2 and line 3</u>

  • 2x + y = 11
  • x + 4y = 9

<u>Double the second equation and subtract the equations:</u>

  • 2x + y - 2(x + 4y) = 11 - 2(9)
  • y - 8y = 11 - 18
  • - 7y = - 7
  • y = 1

<u>Find x:</u>

  • x + 4*1 = 9
  • x + 4 = 9
  • x = 5

The point is (5, 1)

8 0
2 years ago
Given f(x)=-3x+5f(x)=−3x+5, find f(-6)f(−6).
Andreyy89

Answer:

36

Step-by-step explanation:

When you multiply -6 x -6 you get 36.

Hope this helps:)

3 0
2 years ago
Plz help I need help
fenix001 [56]

Answer:

3 / 4 * 50 = 150 / 4

= 37.5 or 37½ yards

Step-by-step explanation:

5 0
2 years ago
15 + brainliest help me please
Fiesta28 [93]
2f +4f +2 -3
 combine the like terms to get 6f-1

 so yes they are equivalent

2f+4f+2-3 at f=3 would also be 17


8 0
2 years ago
Read 2 more answers
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