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3 years ago

Find the discriminant and the number of real roots for this equation. x2 + 2x + 8 = 0

Mathematics

2 answers:

m_a_m_a [10]3 years ago

5 0

Your discriminant is a negative number. Therefore, your solutions are imaginary. It's d from above.

Tamiku [17]3 years ago

3 0

Answer: Option 'D' is correct.

Step-by-step explanation:

Since we have given that

$x^2+2x+8=0$

We will first find the "Discrimination":

$D=b^2-4ac\\\\D=2^2-4\times 8\\\\D=4-32\\\\D=-28$

Since discriminant is less than 0 i.e. D<0.

So, there will no real roots.

Hence, D = -28 and there is no real roots.

Therefore, Option 'D' is correct.

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scZoUnD [109]

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3 years ago

Solve the system of linear equations below. 2x + 3y = 2 x + 6y = 4 x........A.X=0, y =2/3..B..x =2, y = -2/3...C..x=4/3, y=2/9..

Bogdan [553]

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4 years ago

A line goes through the point (–4,–2) and has an x-intercept of –1.

Keith_Richards [23]

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Step-by-step explanation:

y = mx + b

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3 years ago

Which method or methods listed below describe a solid system for keeping financial records? I. Making a mental note of all purch

Nikitich [7]

Financial records are important records and thus, needs to be saved safely. The method for solid system to keep it is: Option d. I, II, and III

<h3>How to safely keep financial records and why?</h3>

Financial records are records of all financial transactions and receipts. They're needed for future cases like some contradictions, to get past details, to analyze data to make prediction about future sale and for development of the organization etc.

For keeping them, they should be saved in an easily accessible, and hardly destroy-able place. So that its prevented safely but accessible faster with correct authentication.

For the given case, for solid system for keeping financial records, we can actually follow all the three steps provided.

I. Making a mental note of all purchases made during the week. II. Recording money spent in a hand-held notebook. III. Organizing receipts and transactions on a computer.

Thus,

The method for solid system to keep it is: Option d. I, II, and III

Learn more about financial records here:

brainly.com/question/4954869

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2 years ago