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mars1129 [50]
3 years ago
9

What number addef to -9 will have a sum of 0

Mathematics
2 answers:
Dvinal [7]3 years ago
5 0

Answer:

9

Step-by-step explanation:

9+(-9)=0

Adding 9 to -9 leaves nothing, think of it like subtracting 9 from 9.

madreJ [45]3 years ago
4 0

Answer: 9 is the answer

Step-by-step explanation:

-9+9=0

Thank you

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What is the distance between B to A<br> Please add the method.<br> The angle is 61 (a bit blurry)
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Answer:

24.03 units (nearest hundredth)

Step-by-step explanation:

The distance between B and A is:  AB = AH + HB

We have been given AH, so we just need to find the measure of HB.

First, find the angle AOH using tan trig ratio:

\sf \tan(\theta)=\dfrac{O}{A}

where:

  • \theta is the angle
  • O is the side opposite the angle
  • A is the side adjacent the angle

Given:

  • \theta = ∠AOH
  • O = AH = 8
  • A = OH = 19.80

\implies \sf \tan(\angle AOH)=\dfrac{8}{19.8}

\implies \sf \angle AOH = 22.00069835^{\circ}

   ∠BOA = ∠BOH + ∠AOH

⇒ ∠BOH = ∠BOA - ∠AOH

⇒ ∠BOH = 61° - 22.00069835°

               = 38.99930165°

Now we can find HB by again using the tan trig ratio:

Given:

  • \theta = ∠BOH = 38.99930165°
  • O = HB
  • A = OH = 19.80

Substituting given values:

\implies \sf \tan(38.99930165^{\circ})=\dfrac{HB}{19.80}

\implies \sf HB=19.80 \tan(38.99930165^{\circ})

\implies \sf HB=16.03332427

Therefore:

   AB = AH + BH

⇒ AB = 8 + 16.03332427

         = 24.03 units (nearest hundredth)

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Answer:

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so 4x=12 so x=3

y=13 is the solution

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The discriminant is -40
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Juan pays $52.35 a month for his cable bill and an additional $1.99 for each streamed movie. If his last cable bill was $68.27,
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