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Free_Kalibri [48]
2 years ago
6

Can someone please answer. There is only one question. There is a picture. Thank you!

Mathematics
1 answer:
Mariulka [41]2 years ago
3 0
<span>False.
Experimental probability is based on doing trials.</span>
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Solve the following system of equations using elimination: 13x + 5y = 16 2x - 8y = 20
Natalka [10]
13x + 5y = 16
2x - 8y = 20

Multiply the equations;

13x + 5y = 16 [x2]
2x - 8y = 20 [x13]

26x + 20y = 32
26x - 104y = 260

Reverse the signs on one equation;

26x + 20y = 32
-26x + 104y = -260

'-26x' gets cancelled, leaving;

20y = 32
104y = -260

20y + 104y = 124y
32 - 260 = -228

124y = -228

y = -228 / 124

y = -1.84

Substitute in one equation and find 'x'. 

Hope this helped! :)
3 0
2 years ago
How to go from vertex to standered form
tiny-mole [99]

Answer:


Step-by-step explanation:

y = a(x - h)2+ k, you use the process of completing the square.


5 0
3 years ago
Un entrepreneur en construction vient d'embaucher deux équipes d'ouvriers. Nommons-les l'équipe A et l'équipe B.
Irina18 [472]

Answer:

Le nombre de jours qu'il faudra à l'équipe A pour terminer le projet si elle travaillait seule est de 10 jours

Le nombre de jours qu'il faudra à l'équipe B pour terminer le projet si elle travaillait seule est de 15 jours

Step-by-step explanation:

Ici nous avons;

Temps pour l'équipe A et B pour terminer la tâche = 6 jours

L'équipe A + l'équipe B pour les deux premiers jours, il faudra 10 jours à l'équipe B pour terminer le travail

Que le projet soit P

Taux de travail de l'équipe A = W₁

Taux de travail de l'équipe B = W₂

∴ W₁ × 6 + W₂ × 6 = P ..................... (1)

W₁ × 2 + W₂ × 12 = P ....................... (2)

Par conséquent, W₁ = (P - 6 · W₂) / 6

En substituant la valeur de W₁ dans (2) nous avons

 Qui donne;

15 · W₂ = P

Par conséquent, il faudra 15 jours à l'équipe B pour terminer le projet si elle travaille seule et branche la valeur de l'équation (1), nous avons;

10 · W₁ = P

Par conséquent, il faudra 10 jours à l'équipe A pour terminer le projet si elle travaille seule.

6 0
3 years ago
M and n are parallel, find the value of x and y
Otrada [13]

Answer:

Step-by-step explanation:

2x - 6 = x + 14   {Vertically opposite angles are congruent}

2x     = x + 14 +6     {Add 6 to both sides}

2x     = x + 20

2x -x  = 20   {Subtract 'x' from both sides}

     x = 20

m // n,

y = x + 14    {corresponding sides are congruent}

y = 20+ 14

y = 34

8 0
2 years ago
Read 2 more answers
Consider the following graph of a quadratic function. Which of the statements are true? Select all that apply.
kumpel [21]

Answer:

C. should be the correct answer


8 0
2 years ago
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