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3 years ago

Quadratic Equation

Geography

1 answer:

True [87]3 years ago

3 0

Explanation:

This is a product of two expressions that is equal to zero. Note that any xxx value that makes either (x-1)(x−1)left parenthesis, x, minus, 1, right parenthesis or (x+3)(x+3)left parenthesis, x, plus, 3, right parenthesis zero, will make their product zero.

begin{aligned} (x-1)&(x+3)=0

swarrow quad&quadsearrow x-1=0quad&quad x+3=0 x=1quad&quad x=-3 end{aligned}

(x−1)

↙

x−1=0

x=1

(x+3)=0

↘

x+3=0

x=−3

Substituting either x=1x=1x, equals, 1 or x=-3x=−3x, equals, minus, 3 into the equation will result in the true statement 0=0, equals, 0, so they are both solutions to the equation.

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Suppose that two stars in a binary star system are separated by a distance of 80 million kilometers and are located at a distanc

jonny [76]

Answer: 1) Angular separation equals 0.0000031 degrees

2) Angular separation in arc -seconds equals 0.011156"

Explanation:

For 2 stars separated by a distance 'S' and at a distance 'D' from the earth the angular separation in radians is given

$\theta _{rad}=\frac{S}{D}$

Applying values we get

$\theta _{rad}=\frac{80\times 10^{6}}{150\times 9.46\times 10^{12}}\\\\\therefore \theta _{rad}=\frac{1}{18487500}radians$

Now we know that 'π' radians equals 180 degrees thus the above value in degrees shall be equal to

$\therefore \theta _{degrees}=\frac{1}{18487500\times \pi }\times 180^{o}=0.0000031^{o}$

The angular separation in arc- seconds is given by

$\theta ''=\theta ^{o}\times 3600\\\\\theta'' = 0.0000031\times 3600=0.011156"$

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3 years ago

How is energy security determined

zlopas [31]

Energy security is the association between national security and the availability of natural resources for energy consumption. Access to (relatively) cheap energy has become essential to the functioning of modern economies.

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2 years ago

Question 14 (1 point)

Anna71 [15]

Answer:

True... happy to help!

Explanation:

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2 years ago

In the following passage written by a conquistador in 1540, what can you infer about how sick citizens were treated? “No one who

erma4kov [3.2K]

Answer:

The sick and invalid members of society were cared for by the healthy citizens

Explanation:

From this passage, we get a simple very nice picture about the basics of how the Inca society worked. Everyone that was capable of working was working, and everyone was treated in the same manner, had the same rights, and the hierarchy was somewhat horizontal. The members of the society that had health problems or were disabled, thus were not able to work, were taken care by the other members of the society, and they were receiving the basic means for living for free from the storehouses.

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2 years ago

For John knew exactly what the slaveowner wanted done and exactly when he wanted it done, as well. The truth was that John colle

gregori [183]

Answer: The elements of a folktale in the excerpt include:

The story is being narrated in third person.

The story is set in the past (at a time when people kept slaves).

The scene is simply described. That is scenes are not described in explicit detail.

If John is the hero of this story, then another element of folklore involved would be - The hero is usually courageous. We can assume this because there were dire consequences for slaves eavesdropping or generally annoying their masters such as beatings, starvation, even torture. For John to take the risk shows bravery.

Explanation:

"Folk" is an old english word for "people". And tale means a fictitious story or true story narrated with lots of imaginative descriptions. Folktale are basically imaginative stories told by people to entertain, convey a moral lesson, pass down traditions etcetera. Most children's stories are folktales.

Folktale elements are the characteristics that make up a typical folktale.

Some of these elements include;

• The hero/heroine is usually good and the antagonist is usually evil.

• The hero and heroine are usually young.

• The heroine is usually fair, kind, charitable, and caring.

• The hero is usually honorable, courageous, unselfish, and caring.

• Place is described easily and briefly that fits the typical geography of the culture.

• Time is usually in the past (usually long-ago) imbedded within history.

Time is fantasy time (Once upon a time sets the stage and They lived happily ever after closes the tale.) any time or any place, timeless or placeless, or long long ago.

The story is usually verry simple to follow or read.

Conflicts are usually resolved with great deeds or acts of human kindness related to good and bad/evil.

The story is usually narrated in third person.

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3 years ago

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