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kotykmax [81]
3 years ago
9

Prove the diagonals of a parallelogram bisect one another. Be sure to create and name the appropriate geometric figures.

Mathematics
1 answer:
GalinKa [24]3 years ago
3 0
Hope this helps you!!!...

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I need help please! How do i know which is the correct answer.
hichkok12 [17]

Answer:

C

Step-by-step explanation:

since there cant be technically half of someone (i hope not) the domain has to be "whole numbers". hours can be split, so they are "all numbers". well, looking at it again, it is C, since the others can not possibly be correct.

3 0
3 years ago
If 2tanA=3tanB,then prove that tan(A-B)=sin2B/(5-cos2B) ...?
andreev551 [17]
Tan ( A - B ) = ( tan A - tan B ) / ( 1 + tan A tan B )
tan A = 3 tan B/2
tan ( A - B ) = ((3 tan B/ 2)-tan B) / ( 1 + 3 tan² B/2)=
= (tan B/2)  / ( 2 + 3 sin²B/cos²B )=
= (sin B / cos B) / (( 2cos² B+3sin²B)/cos²B)=
=( sin B cos B ) / ( 2 cos²B + 3 ( 1 - cos² B ) ) =
= (sin B cos B ) / ( 2 cos² B + 3 - 3 cos² B ) =
= ( sin 2 B ) / 2 ( 3 - cos² B ) =
= ( sin 2 B ) / ( 6 - cos² B )=
= ( sin 2 B ) / ( 5 + 1 - 2 cos² B )=
= ( sin 2 B ) / ( 5 + sin² B + cos ² B - 2 cos² B ) =
= ( sin 2 B ) / ( 5 - ( cos² B - sin² B ) ) =
= ( sin 2 B ) / ( 5 - cos 2 B )  - correct 
8 0
2 years ago
How do you know (2,1) is a solution to 4x +y=9
VARVARA [1.3K]

4x+y=9

4(2)+(1)=9

8+1=9

9=9

It is a solution

8 0
3 years ago
Read 2 more answers
12(80-x)=816 what does x equal?​
AlexFokin [52]
One way to solve:
960-12x=816
144=12x
12=x
Another way to solve
80-x=68
x=12
3 0
3 years ago
Read 2 more answers
-1/3(2p-9) what does p equal
serious [3.7K]

Answer:

-2p/3+3

Step-by-step explanation:

3 0
2 years ago
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