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Svetllana [295]
3 years ago
7

NEED HELP

Mathematics
1 answer:
blagie [28]3 years ago
3 0

Answer:

Range: [-7, 8]

General Formulas and Concepts:

<u>Algebra I</u>

  • Reading a coordinate plane
  • Range is the set of y-values that are outputted by function f(x)
  • Interval Notation: [Brackets] denote inclusion, (Parenthesis) denote exclusion

Step-by-step explanation:

According to the graph, our y-values span from -7 to 8. Since both are closed dot, they are included in the range:

Range: [-7, 8]

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Answer:

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Step-by-step explanation:

we know that

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in this problem we have

x^{2}=4x-5  

Equate to cero

x^{2}-4x+5=0  

so

a=1\\b=-4\\c=5

substitute in the formula

x=\frac{4(+/-)\sqrt{-4^{2}-4(1)(5)}} {2(1)}

x=\frac{4(+/-)\sqrt{16-20}} {2}

x=\frac{4(+/-)\sqrt{-4}} {2}

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i^{2}=-1

so

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therefore

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3 years ago
Yuri purchased 8 trees to have planted at his house. The store charged a delivery fee of $5 per tree.The total cost of the trees
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8 0
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ololo11 [35]

Answer:

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Step-by-step explanation:

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<u>+ 2x             + 2x</u>

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<u>   - 3    - 3</u>

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8 0
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