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OlgaM077 [116]
4 years ago
6

What are the solutions of the equation?

Mathematics
1 answer:
Maksim231197 [3]4 years ago
3 0

Answer:

x₁ = √15

x₂ = - √15

Step-by-step explanation:

x² - 15 = 0

x² = 15

x = ±√15

x₁ = √15

x₂ = - √15

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Need help now!! 20 points!!
Gelneren [198K]

When you have something like this, all you need to do is substitute the values, the last is for what value of x

For the first one;

((x^2+1)+(x-2))(2)

(x^2+x-1)(2)

(2)^2+(2)-1

4+2-1

5

For the second one;

((x^2+1)-(x-2))(3)

(x^2-x+3)(3)

(3)^2-(3)+3

9-3+3

9

For the last one;

3(x^2+1)(7)+2(x-2)(3)

3((7)^2+7)+2((3)-2)

3(49+7)+2(3-2)

3(56)+2(1)

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170

3 0
3 years ago
You have determined that a statistical study is biased. What does this mean? A. Errors were made in data collection. B. Particip
Natasha2012 [34]

Answer:

Participants were lead to respond in a specific way.

Explanation:

Bias (the verb) is to show influence or prejudice about a certain thing and can cause people to change how they act or what they do.

3 0
3 years ago
Show how you can make ten to find the sum 9 + 2 equal
Fudgin [204]
You can add 9+1 then make ten and add 10 +1
4 0
4 years ago
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worty [1.4K]

Answer:

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Step-by-step explanation:

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Powder concentrate                    Oranges

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X = 79.2, that is to say that 79.2 tons are necessary to produce 66 tons of powder concentrate to make juice.

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3 years ago
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<h2>Answer:</h2><h2>7:00 PM</h2><h2>Utah is 2 hours behind New York.</h2><h2>Hope this helps!!</h2>
4 0
3 years ago
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