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insens350 [35]
3 years ago
9

Convert 0.9 cm into m

Mathematics
1 answer:
Whitepunk [10]3 years ago
4 0

<em>Answer is 0.009 </em>

<em></em>

0.9 ( 0.01 m / cm  ) = 0.009

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4. Which of the following lines is perpendicular to y = -2X + 8?
Alenkinab [10]

For this case we have to by definition, if two lines are perpendicular then the product of its slopes is -1.

That is to say:

m_ {1} * m_ {2} = - 1

We have the following equation:

y = -2x + 8

So:

m_ {1} = - 2

Thus:

m_ {2} = \frac {-1} {m_ {1}}\\m_ {2} = \frac {-1} {- 2}\\m = \frac {1}{2}

Thus, a line perpendicular to the given line must have slope m = \frac {1} {2}.

Option A:

x + 2y = 8\\2y = -x + 8\\y = - \frac {1} {2} x + 4

It is not perpendicular!

Option B:

x-2y = 6\\2y = x-6\\y = \frac {1} {2} x-3

If it is perpendicular!

Option C:

2x + y = 4\\y = -2x + 4

It is not perpendicular!

Option D:

2x-y = 1\\y = 2x-1

It is not perpendicular!

The correct option is option B

ANswer:

Option B

5 0
3 years ago
Jessie says to round 736,400 to the nearest ten thousand ,he will round to 770,000. is he right? explain.
djverab [1.8K]

no because if your rounding 736,400 it will be 740,000 if its 4 or less you let it rest if its 5 or more it rises


3 0
3 years ago
Nicole is half as old as Donald. The sum of their ages is 72.<br> How old is Nicole, in years?
PIT_PIT [208]

Answer:

24

Step-by-step explanation:

The sum of the their ages is 72. 48 divided by 2 is 24. 48 plus 24 is 72

3 0
3 years ago
How to find the midpoint of two points on a coordinate plane?
Dennis_Churaev [7]
In geometry, the midpoint is the middle point of a line segment. It is equidistant from both endpoints, and it is the centroid both of the segment and of the endpoints. It bisects the segment.
6 0
3 years ago
Please please please help me with two questions. Answer correctly for brainlist!!!!
Vesnalui [34]
1. 28.57  

2.  16
 
Hope this is right. 
5 0
3 years ago
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