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photoshop1234 [79]
2 years ago
8

A/4 - 5/6 = -1/2a/4 - 5/6 = -1/2​

Mathematics
1 answer:
quester [9]2 years ago
5 0

Answer:

a = 4/3

yea thats the answer

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Is ab perpendicular to cd ? Explain.
Afina-wow [57]
We know that
if two lines are perpendicular
then
the slopes 
m1*m2=-1

step 1
find the slope AB
A (0,2)
B (-3,-3)
m=(y2-y1)/(x2-x1)-----> m=(-3-2)/(-3-0)-----> m=-5/-3----> m1=5/3

step 2
find the slope CD
C (-4,1)
D (0,-2)
m=(y2-y1)/(x2-x1)-----> m=(-2-1)/(0+4)-----> m=--3/4----> m2=-3/4

step 3
multiply mi*m2
(5/3)*(-3/4)-----> -15/12
so
15/12 is not -1
therefore
 AB is not perpendicular to CD
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3 years ago
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Answer:

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Step-by-step explanation:

 

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