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Allisa [31]
3 years ago
14

Can someone please help

Mathematics
2 answers:
Evgen [1.6K]3 years ago
6 0
<h2>Answer:</h2>

1. 122.2

2. D. Square feet per dollar.

3. Decreases.

4. 68.115

Nata [24]3 years ago
5 0

Answer:

  1. A 122.2
  2. B square feet
  3. A increase
  4. B 68.115
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What are the zeros of the function f(x) = x2 + 5x + 5 written in simplest radical form?
Pavel [41]

\boxed{x_{1}=\frac{-5 + \sqrt{5}}{2}} \\ \\ \\ \boxed{x_{2}=\frac{-5 - \sqrt{5}}{2}}

<h2>Explanation:</h2>

Using the quadratic formula:

x=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \\ \\ \\ Here: \\ \\ f(x) = x^2 + 5x + 5 \\ \\ \\ So: \\ \\ a=1 \\ \\ b=5 \\ \\ c=5 \\ \\ \\ x=\frac{-5 \pm \sqrt{5^2-4(1)(5)}}{2(1)} \\ \\ x=\frac{-5 \pm \sqrt{25-20}}{2} \\ \\ x=\frac{-5 \pm \sqrt{5}}{2} \\ \\ \\ Two \ solutions: \\ \\ \boxed{x_{1}=\frac{-5 + \sqrt{5}}{2}} \\ \\ \\ \boxed{x_{2}=\frac{-5 - \sqrt{5}}{2}}

<h2>Learn more:</h2>

Quadratic functions: brainly.com/question/12164750

#LearnWithBrainly

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3 years ago
Click each dot on the image to select an answer.
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The answer would be b
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Show a reciprocal numerical expression for each equation using multiplication, please!
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3 years ago
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