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Elanso [62]
3 years ago
9

Can someone please help with number 4 ! !

Mathematics
1 answer:
Kruka [31]3 years ago
8 0

Answer:

d

Step-by-step explanation:


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The standard form of the equation for a quadratic function is, with he vertex of the graph of the function at the point (p,q). t
ludmilkaskok [199]

Answer:

p = ½ (x₁ + x₂)

q = a (x₁x₂ − ¼ (x₁ + x₂)²)

Step-by-step explanation:

y = a (x − x₁) (x − x₂)

Expand:

y = a (x² − x₁x − x₂x + x₁x₂)

y = a (x² − (x₁ + x₂)x + x₁x₂)

Distribute a to the first two terms:

y = a (x² − (x₁ + x₂)x) + ax₁x₂

Complete the square:

y = a (x² − (x₁ + x₂)x + ¼(x₁ + x₂)²) + ax₁x₂ − ¼ a(x₁ + x₂)²

y = a (x − ½ (x₁ + x₂))² + a (x₁x₂ − ¼ (x₁ + x₂)²)

Therefore:

p = ½ (x₁ + x₂)

q = a (x₁x₂ − ¼ (x₁ + x₂)²)

3 0
3 years ago
The system of equations: 5x-4y=-3
Sophie [7]

Answer:

3)5x-4y=-3

6x+4y=14

Step-by-step explanation:

The system of equations is given

5x-4y=-3

3x+2y=7

Multiplying both sides of the lower equation by 2, we get

6x + 4y = 14

That means your answer 3)

5 0
2 years ago
If 11 boxes of chocolates contain 220 chocolates in total, calculate how many chocolates 5 box of chocolates will contain
egoroff_w [7]

Answer:100 chocolates

Step-by-step explanation:

20 chocolate in each box so 20 time 5 is 100 so 20 time 11 is 220

4 0
3 years ago
If you left $25.00 on your table for a $21.50 meal, what was the percent of the tip?
Nesterboy [21]

Answer: 3.5% with a 3.50 Tip

Reason: 25.00 - 21.50 = 3.50

4 0
3 years ago
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Write an expression that represents the area of a triangle with base 2x^2 and height 3xy (For any triangle with base b and heigh
hoa [83]
The answer should be D. 6x^3y 
8 0
3 years ago
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