TGJuuzouSuzuya
27.12.2019 •
Mathematics
Aframe holds a picture that is 15in long and x in wide. the frame border is 3in wide around the picture. what expression represents the area of the frame border?
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Ответ:
6x+126in^2
Step-by-step explanation:
a =15 long
b=x. Wide
A=ax
A=15x represenrs picture area
Add on each side of picture 3 in
a1=15+6=21 in
b1=x+6
Calculate area
A1=a1b1
A1=21(x+6)
Area of frame = A1-A
Area of frame=21(x+6)-15x=21x-15x+126=6x+126in^2
Ответ:
They can be as long as you want, from anywhere from 1 unit to infinity
Step-by-step explanation:
They just have to be equal to form a right triangle