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Illusion [34]
3 years ago
6

Nick is going to the skating ring once in 12 days. Victoria is going to the skating ring once in 20 days. Boris is going to the

skating ring once in 18 days. Last monday they all went to the skating ring. When is the next day they will be there all together?
Mathematics
1 answer:
Maurinko [17]3 years ago
5 0
Nick : 12, 24, 36,48,60,72,..... 180

Victoria: 20, 40, 60,80....180

Boris: 18,36,54,.....180

they will be together on day 180


good luck
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Consider the parabola given by the equation: f(x) = 2x2 + 14.0 – 4
Softa [21]

Answer:

Step-by-step explanation:

f(x)  = 2x² + 14x - 4

= 2(x² + 7x) - 4

= 2(x² +7x + 3.5²) - 2(3.5²) - 4

= 2(x+3.5)² - 28.5

vertex (3.5, -28.5) = (7/2, -57/2)

The vertical intercept is the y-intercept, i.e., f(0) = -4.

The x-intercepts are the values of x for which y=0.

2x² + 14x - 4  = 0

x = [-14±√(14²-4(2)(-4))]/[2(2)] = [-7±√57]/2 ≅ -7.27, 0.27

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2 years ago
The lines below are parallel. If the slope of the solid line is –3, what is the slope of the dashed line?
stepladder [879]

Answer:

-3

Step-by-step explanation:

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8 0
3 years ago
Need help on number 12....
Vaselesa [24]

Answer:

the answer is A. Elijah is correct.

5 0
3 years ago
Read 2 more answers
Solve the system by graphing.
igor_vitrenko [27]

Answer:

Hi There the correct answer is {x,y} = {-1,-10}  

 

System of Linear Equations entered :

  [1]    3x - y = 7

  [2]    4x - 2y = 16

Graphic Representation of the Equations :

   y + 3x = 7        -2y + 4x = 16  

 

 

Solve by Substitution :

// Solve equation [1] for the variable  y  

 

 [1]    y = 3x - 7

// Plug this in for variable  y  in equation [2]

  [2]    4x - 2•(3x-7) = 16

  [2]    -2x = 2

// Solve equation [2] for the variable  x  

  [2]    2x = - 2  

  [2]    x = - 1  

// By now we know this much :

   x = -1

   y = 3x-7

// Use the  x  value to solve for  y  

   y = 3(-1)-7 = -10  

Solution :

{x,y} = {-1,-10}  

Hope it helps!

8 0
2 years ago
Which of the following is E ∪ F?
vesna_86 [32]
For E the answer is 2. Because the square of 1 is one and 9 is three. And 2 to the square root of two which would be 2 time 2= 4

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3 years ago
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