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inn [45]
3 years ago
8

4x^2 + 20 = 0; TAKING SQUARE ROOTS

Mathematics
1 answer:
Annette [7]3 years ago
4 0

Answer:

<u>x₁ = i√5</u>

<u>x₂ = -i√5</u>

Step-by-step explanation:

Let's solve the equation using square roots.

4X^2 + 20=0

x² + 5 = 0 (Dividing by 4 at both sides of the equation)

x² = -5 (Subtracting 5 at both sides of the equation)

√x² = √-5 (Square root to both sides of the equation, √-1 = i)

x = +/- i√5 ( (Roots of the solution)

<u>x₁ = i√5</u>

<u>x₂ = -i√5</u>

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Answer:

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Step-by-step explanation:

18 less than half a number is 6.

So this is the formula:

X/2 - 18 = 6.

You can add 18 to 6.

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Step-by-step explanation:

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Over [174]
I will mark brainlist please help

Story : A Dog’s Tale by Mark Twain

1. Using a dog as narrator gives the passage a tone of —


• objectivity
• formality
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2. What literary device is used in the sentence “She had one word which she always kept on hand, and ready, like a life-preserver”?

• Simile
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• Hyperbole
• Onomatopoeia

3. Based on the second paragraph, the word mastiff most likely means —

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• They knew the meaning of “supererogation” and realized they were listening to a funny joke.

• Watching and laughing as others were embarrassed vindicated their own previous embarrassment.

• They were generally happy dogs who often expressed a great deal of joy.

5. “A Dog’s Tale” uses the topic of animal communication in order to —
• show how dogs really communicate

• explain how animals learn from humans

• demonstrate that dogs are smarter than most people

• poke fun at human behavior

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• 10 hours

• 10 days

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• 10 years

7. An underlying theme in this story is that —

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8. Since the author used first person, readers are left to wonder —

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5 0
3 years ago
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An earthquake with a magnitude of about 2. 0 or less is called a microearthquake. It is not usually felt. The intensity of an ea
Alecsey [184]

The intensity of an earthquake with a magnitude of 2 is 100 times greater than the intensity of an a standard earthquake .

<h3>What is magnitude of earthquake?</h3>

Magnitude of earthquake is the measure of the size of origin of the earthquake. The magnitude of the earthquake keeps the same value for each place.

An earthquake with a magnitude of about 2. 0 or less is called a micro-earthquake and not felt usually.The intensity of an earthquake with a magnitude of 2.

Let the intensity of this earthquake is <em>n </em>times greater than the intensity of an a standard earthquake. Thus the intensity of standard earthquake can be given as,

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If the magnitude would be 3 then the intensity would be,

n=10^3\\n=1000

It would be 1000 times greater than the standard earthquake and so on.

Thus, the intensity of an earthquake with a magnitude of 2 is 100 times greater than the intensity of an a standard earthquake .

Learn more about the magnitude of earthquake here;

brainly.com/question/18109453

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