X ^ 2 - 9
= x ^ 2 - 3 ^ 2
It turns into 3 ^ 2
Because 3 ^ 2 = 9
The final answer is
= ( x + 3 )( x - 3 )
remember the formula :
a^2 - b^2 =(a+b)(a-b)
Data set A have a median of 2, mean of 3.4, min of 1 and max of 9. range of 8
Data set B have a median of 7, mean of 6, min of 1 and max of 12, range of 11
so Data set B is much bigger than data set A
The line is drawn at point A and Point C is a line of symmetry because lines of symmetry make exactly two halves with similar shapes and sizes.
<h3>What is a line of symmetry?</h3>
It is defined as the line which will make exactly two halves with similar shape and size in geometry. For a two-dimensional shape, there is a line of symmetry, and for three-dimensional shapes, there is a plane of symmetry. In other words, if we make a mirror image of the shape around the line of symmetry, we will get exactly the same half portion.
We have given a figure in the picture.
The figure is a quadrilateral(a kite)
As we know, lines of symmetry make exactly two halves with similar shapes and sizes.
IF we draw a line from Point A to Point C we will get two similar and figures in size and shape.
Thus, the line is drawn point A and Point C is a line of symmetry because lines of symmetry make exactly two halves with similar shapes and sizes.
Learn more about the line of symmetry here:
brainly.com/question/1597409
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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
• bitterness
• humor
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
• Metaphor
• Hyperbole
• Onomatopoeia
3. Based on the second paragraph, the word mastiff most likely means —
• a large dog
• a male dog
• a man’s shirt
• a part of a ship
4. According to the author, what would bring such happiness to the dogs as he describes at the end of the story?
• They helped the author’s mother find the words she used, so they especially enjoyed watching her use them.
• 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
6. The amount of time that passes during this story is most likely —
• 10 hours
• 10 days
• 10 months
• 10 years
7. An underlying theme in this story is that —
•many people use words without knowing their meanings
• dogs know more than people realize
• family loyalty takes top priority
• strangers are almost always suspicious
8. Since the author used first person, readers are left to wonder —
• how the author felt about his mother
• how strangers reacted to his mother’s word knowledge
• what the author’s mother was thinking
• whether or not the author’s mother knew the meanings of all the words she used
