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Orlov [11]
3 years ago
8

Do a two column proof! Given: AB = DC Prove: AC = DB please help!!!!!!!

Mathematics
1 answer:
scoundrel [369]3 years ago
6 0

Answer:

answer is B

Step-by-step explanation:

hope dis help and if I may have brainly plz

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The jar only contains nickels and dimes altogether there are 10 coins total of the value is 90 cents how many nickels and how ma
lilavasa [31]
Write a system of equations and solve.

x + y = 10
5x + 10y = 90

Multiply and combine equations

-5x - 5y = -50
5x + 10y = 90
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5y = 40
y = 8
x = 2

There are 2 nickels and 8 dimes in the jar. Hope this helps! :)
3 0
3 years ago
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2 years ago
M<1 and m<2 are vertical angles if m<1 = 106° and M<2 equals 20x - 14 find M<2
just olya [345]

Answer:

Answer:

m∠2= 86

Step-by-step explanation:

since they are vertical angles, that means they are both equal to eachother.

so lets set them equal!

17x+1=20x-14

17x+15=20x

15=3x

x=5

now input x into m∠2

m∠2 = 20(5) – 14 = 86

Step-by-step explanation:

5 0
3 years ago
What is 20.35 divided by 3 in the standard algorithm
liberstina [14]
20.35 divided by 3 equals 6 (:
4 0
3 years ago
Read 2 more answers
How many ways are there to select 25 books from a collection of 27 books? i am just studying today
laiz [17]

notice, this will just be a Permutation.

\bf _nP_r=\cfrac{n!}{(n-r)!}\qquad \qquad \stackrel{\textit{25 books off a total of 27}}{_{27}P_{25}=\cfrac{27!}{(27-25)!}} \\\\\\ _{27}P_{25}=\cfrac{27!}{2!}\implies 5444434725209176080384000000

you can always check your calculator also for a [ ₙPᵣ  ] button.

4 0
3 years ago
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