meganwintergirl
29.07.2020 •
Mathematics
Use the elimination method to solve the system of equations. Choose the
correct ordered pair.
6x + 2y = 8
12x+y = 22
A. (4-4)
B. (2-2)
C. (-1,1)
D. (-3, 3)
Solved
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Ответ:
Two similar cylinders have proportional dimensions:
.
Then cm.
d is the diameter of the second cylinder base, then r=d/2=3 cm.
The surface area of the smaller cylinder consists of the area of two bases and area of the lateral face:
.
Since r=3 cm and h=9 cm, you have
sq.cm.