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Radda [10]
3 years ago
6

50 POINTS PLEASE HELP!!

Mathematics
1 answer:
Aneli [31]3 years ago
4 0

Answer:

Tanya: $ 2

Tony: $ 1.5

Step-by-step explanation:

Part a)

Number of games that Tanya bought = 3

Cost of each game that Tanya bought = x

Since, the cost for each game is x, the cost for 3 games would be 3x. So we can write:

Total cost of Tanya's items = 3x

Part b)

Number of games that Tony bought = 4

Each game that tony bought was $0.5 less in cost that what Tanya paid for each game. This means,

Cost of each game that Tony bought = x - 0.5

Since, the cost of each game is (x - 0.5), the cost for 4 games would be 4(x - 5). Thus,

Total cost of Tony's items = 4(x - 0.5)

Part c, d and e)

Since, both Tanya and Tony paid the same amount for their purchases, we can write:

Total cost of Tanya's items = Total cost of Tony's items

Using the values from previous parts, we get:

3x = 4(x - 0.5)

3x = 4x - 2

2 = 4x - 3x

x = 2

Since, x represents the cost of each item that Tanya paid, we can conclude that the cost of each game of Tanya was $ 2 and cost of each game of Tony was $ 1.5

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Answer:  Answer  is in the steps..

Step-by-step explanation:

f(x)= 2x^{2} - 3x -5        

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   x= 3 ± 7 /4

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B)  The graph vertex of the graph of f(x)  is going to be at a minimum because the leading coefficient of the function has a positive integer which means the parabola will open up and its vertex will be at the minimum point.

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The x coordinate of the vertex  is 3/4 so we will input that into the equation and solve for the y coordinate  

2(\frac{3}{4})^2 - 3 (\frac{3}{4}) - 5   = 18/16 - 9/4 -5  =  -49/8

The y coordinate of the vertex  is  -49/8

So the vertex is (3/4, -49/8)  

C)   First  I will graph the vertex and then graph he two x intercepts and connect then like a U shape.

5 0
4 years ago
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Answer:

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