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tangare [24]
3 years ago
9

How many units apart are the points P(-1,-2) and Q(2,2) in the standard (x,y) coordinate plane?

Mathematics
1 answer:
yaroslaw [1]3 years ago
3 0
=sqrt((x2-x1)^2+(y2-y1)^2)=sqrt((2--1)^2+(2--2)^2)=sqrt(9+16)=sqrt(25)=5=5
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List 0.5 1/5 0.35 12/25 4/5 from least to greatest
Anika [276]
One way is to make them all decimals or all fractions:

.5   .2  .35  .48  .80  are the numbers above changed to decimals.
I will make them the same length (two digit past the decimal point) to compare
.50   .20  .35  .48 and .80

Now it is easy to put them in order

.2  .35  .48   .5  and .80

Let's put them into all fractions

5/10   1/5   35/100   12/25 and 4/5

Instead of finding a common denominator let's try this:
Think of them as test scores - the person who got 1 out 5 did the worst
Next came the person who got only 35 out of 100 - they only did better than the one above (1/5)
12/25 is almost 1/2 but a little below half the questions right
5/10 is exactly half the questions right (so it is bigger than 12/25 by a little).
4/5 is the best score (and the only one who passed).
So 1/5, 35/100, 12/25, .5 and 4/5 are in order least to greatest and match the answer above in bold.
3 0
3 years ago
Read 2 more answers
Can yall please help lol
const2013 [10]

Answer:

1.) Triangle ABC is congruent to Triangle CDA because of the SAS theorem

2.) Triangle JHG is congruent to Triangle LKH because of the SSS theorem

Step-by-step explanation:

Alright. Let's start with the 1st figure. How do we prove that triangles ABC and CDA (they are named properly) are congruent? First, we can see that segments BC and AD have congruent markings, so that can help us. We also see a parallel marking for those segments as well, meaning that the diagonal AC is also a transversal for those parallel segments. That means we can say that angle CAD is congruent to angle ACB because of the alternate interior angles theorem. Then, the 2 triangles also share the side AC (reflexive property).

So, we have 2 congruent sides and 1 congruent angle for each triangle. And in the way they are listed, this makes the triangles congruent by the SAS theorem since the angle is adjacent to the 2 sides that are congruent.

The second figure is way easier. As you can clearly see by the congruent markings on the diagram, all the sides on one triangle are congruent to the other. So, since there are 3 sides congruent, we can say the triangles JHG and LKH are congruent by the SSS theorem.

4 0
3 years ago
Read 2 more answers
Simplify.<br><br><br><br>4−8÷2+3<br><br><br>help lol​
Musya8 [376]

Answer:

we start with -8 divided by 2 because of PEMDAS

we now have -4

then we do 4-4+3=3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is 98765432-1? Really appreciate you helping me get rid of my points!
larisa [96]

Answer:

98765431 is the answer

Step-by-step explanation:

This took me a very long time to complete so your welcome ;)

5 0
3 years ago
Find the measure of exterior 1.
svetlana [45]
The answer would be 90.
8 0
3 years ago
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