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3 years ago

Using the Distance Formula

Mathematics

1 answer:

Leokris [45]3 years ago

7 0

Answer:

Step-by-step explanation:

since I did 1 already , i'll do 2 - 6 .. fast

using the formula for distance = sq rt [ (x2 - x1 ) ^2 + (y2 - y1 ) ^2 ]

2) sq rt [ (6-1)^2 + (14-2)^2

sq rt [ 25 + 144]

sq rt [ 169]

3) sq rt [ (15 - 8)^2 + (35-11)^2 ]

sq rt [ 49 + 576 ]

sq rt [625]

4) sq rt [ ( -5 -3 )^2 + (-7 - 8)^2 ]

sq rt [ 64 + 225]

sq rt [ 289]

5) sq rt [(-1-(-2))^2 + (-4-(-3))^2]

sq rt[ (-1+2)^2 + (-4+3)^2]

sq rt [ 1 + 1 ]

$\sqrt{2}$

6) sq rt [ 3-(-3)^2 + (5-5)^2]

sq rt [ (3+3)^2 + 0]

sq rt [ 9 ]

:) phew.... :P

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Perimeter of a triangle with side length of 13.9in,10.4,8.5in

AlladinOne [14]

Perimeter =a+b+c

13.9 + 10.4 + 8.5 =

32.8 in (perimeter)

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Which step in the construction of copying a line segment ensures that the new line segment has the same length as the original l

anzhelika [568]

Answer:

Now out of these points, i guess steps 5 and 6 are the main steps that ensure that the copied line segment is exactly the same as the original segment.

Step-by-step explanation:

Here are the steps I think you probably will go through.

1. Draw a line that is longer than the segment but shorter than the width of the page.

1a. Make sure this line is at least 1/2 inch from the left hand side.

2. Use a compass to measure the length of the original segment. Never use a ruler. Rulers do not exist in pure geometry.

3. Measure out the distance on the line you just drew with the compass. One end is on the left hand edge and the other end (the pencil end) is marking the segment so it is the same length as the compass. You are done.

The key step either two or three.The steps to copy a line segment are given below:

1. Lets start with a line segment AB that we have to copy.

2. Now mark a point C. below or above AB, that will be one endpoint of the new line segment.

3. Now, put the compass tip on point A of the line segment AB.

4. Spread the compass up to point B, so as the compass width is equal to length of AB.

5. Without changing the compass width, now place the compass tip on the point C that you made in step 2.

6. Now, draw an arc roughly without changing the compass settings. Mark that point D. This will form the new line segment.

7. Draw a line from C to D.

Now out of these points, i guess steps 5 and 6 are the main steps that ensure that the copied line segment is exactly the same as the original segment.

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3 years ago

A 2001 study by two researchers investigated an anti-poverty initiative in Venezuela called POVERTA. POVERTA gave money to poor

ANEK [815]

Answer:

1. This is a "RANDOMIZED CONTROLLED EXPERIMENT".

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2. The research has a treatment group and a controlled group.

A treatment group are those group that received some special treatment from the researcher, it can also be called the experimental group. According to the research, the treatment group are those who are in the POVERTA scheme. That is the 320 communities.

A controlled group are those group that were not given any special treatment, but are , separated and studied. According to the research the controlled group are those 185 communities

3. This research provides evidence that being in a community receiving POVERTA benefits is associated with a lower rate of childhood illness. Because after two years, it was noticed the children in the community that receives POVERTA has low rate of illness, than the children in a community that doesn't receive the benefits of POVERTA.

4. This study does not provide evidence that being in a community receiving POVERTA benefits causes a lower rate of childhood illness. Because the research did not involve treatment of illnesses and they is no experimental evidence that shows that POVERTA benefits is interrelated with illness, as illness involves the internal functions of human body.

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3 years ago

Scientific notation 20,000+3,400,000= an example to would be helpful

Viefleur [7K]

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The sum in scientific notation would look like this:

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I hope that's what you meant :)

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il63 [147K]

Hello,

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