Answer:
V = 144 pi or approximately 452.16
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2 h where r is the radius and h is the height
V = pi (6)^2 4
V = pi (36)4
V = pi *144
V = 144pi
We can approximate pi by 3.14
V = 3.14*144
V =452.16
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<h3>
Answer: 518</h3>
Explanation:
Let's draw a vertical line to split the figure into two rectangles.
The rectangle on the left is 42 by 9, so its area is 42*9 = 378.
The rectangle on the right is 7 by 20 giving an area of 7*20 = 140.
Overall, the entire area is 378+140 = 518 square yards
Answer:
Step-by-step explanation:
Add 4y to both sides in the first equation:
Substitute that new equation into the second equation:
Add 31 to both sides:
Divide -1 on both sides:
Substitute y=-6 in the third equation (first equation but modified)