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gayaneshka [121]
3 years ago
13

Help me please! I don't understand how to do this and neither does my mom

Mathematics
1 answer:
sasho [114]3 years ago
3 0
1.solve for d under 1 can't type that means it wants d1= so
A= 1/2 d1d2
Mult by 2/1 of each side you get
2A= 1/2times 2/1 d1d2
2A= d1d2
Divide by d2 on both sides the d2 cancel on the right
2A/d2= d1
d1= 2A/d2


2.V=LWH
Divide by LH
V/LH= LWH/LH. LH cancel
V/LH= W
Hope this helps You and mom
7. -4x+y=9
Bring the 4x to the right makes it positive
Y= 4x+9

9. -3y+18x=12
-3y= -18x+12
Divide by -3 all of it
Y= 6x-4
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