cecil13
14.01.2020 •
Mathematics
What is the length of sr?
18 units
9 units
12 units
15 units
Solved
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Ответ:
Step-by-step explanation:
RT = sqrt(20^2 - 16^2)
RT = sqrt(400 - 256)
RT = sqrt(144)
RT = 12
SR/ST= QR/QT
SR/12 = 20/16
SR = 12 x 20 / 16
SR = 240/16
SR = 15
answer is C.
15 Units
Ответ:
5x + 6 - 4x = 12
1x= 6
x=6
6 -4(6) = y
6-24
y= -18