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satela [25.4K]
3 years ago
12

Please help! alg 1! I really need a explaintion fastttt

Mathematics
1 answer:
Gelneren [198K]3 years ago
7 0

Answer:

  1. y = -5x +10
  2. (0, 10)
  3. (1, 5)
  4. see attached

Step-by-step explanation:

1. Subtract 5x from both sides to put the equation in slope-intercept form:

  y = -5x +10

__

2. The y-intercept is the point corresponding to x=0. The y-value when x=0 is the constant in the equation: 10. Then the point is ...

  (x, y) = (0, 10)

You may notice this is one of the points listed in part 4, and is also used in question 3.

__

3. The x-value computed is 1; the y-value computed is 5. The point is ...

  (x, y) = (1, 5)

You may notice this is one of the points listed in part 4.

__

4. See attached

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a) OC = 18cm

b) MN = 6cm

Explicație pas cu pas:

Găsiți diagrama la întrebarea atașată.

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b) Această întrebare ne cere să găsim segmentul de linie MN.

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Deoarece AM = 2n + 3 din întrebarea 1;

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Din diagramă, AN = ON-OA și ON = OB / 2

AN = OB / 2 - OA

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AN = 4n + 2/2 - 2n

AN = 2n + 1 - 2n

AN = 2n-2n + 1

AN = 1

De la MN = AM - AN

MN = 7 - 1

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Prin urmare, distanța dintre N, mijlocul segmentului OB și punctul M este de 6cm

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