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2 years ago

5

What are points and lines? give a definition

1 answer:

wel2 years ago

6 0

Answer: A point in geometry is a location. It has no size i.e. no width, no length and no depth. A point is shown by a dot. A line is defined as a line of points that extends infinitely in two directions. ... A plane is named by three points in the plane that are not on the same line.

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What the answer to this

neonofarm [45]

Answer:

D

Step-by-step explanation:

(I solved in the picture, firstly look at there)

after completing the square and factoring :

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${x}^{2} + 4x + 4 = 12$

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Hope this helps ^-^

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3 years ago

Read 2 more answers

Complete the table with the number of sit-ups you have to do sunday so that the mean number of sit-ups per day is 100

marissa [1.9K]

The mean is the average of the numbers.

It is easy to calculate: add up all the numbers, then divide by how many numbers there are.

Let the number of sit-ups you have to do Sunday be x. Then the sum of all sit-ups is

100+65+120+150+90+0+x=525+x.

The number of days is 7.

Thus, the mean is

$\text{mean}=\dfrac{525+x}{7}.$

You know that the mean number of sit-ups per day is 100, equate these two means and solve the equation:

$\dfrac{525+x}{7}=100,\\ \\525+x=700,\\ \\x=700-525,\\ \\x=175.$

Answer: 175 sit-ups

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2 years ago

All you need is in the photo <br>please help

rosijanka [135]

Answer:

50

Step-by-step explanation:

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3 years ago