The system of equations y=-3x+1/2 and y= 1/5x-1 and 4/5 is shown on the graph below. What is a reasonable estimate for the solut
ion?
A. (0.7, -1.7)
B. (-1.7, 0,7)
C. (1.4, -3.3)
D. (-3.3, 1.4)
A. (0.7, -1.7)
B. (-1.7, 0,7)
C. (1.4, -3.3)
D. (-3.3, 1.4)
2 answers:
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Answer:
1.03
Step-by-step explanation:
To find the volume of a prism, find the area of the base and multiply it by the height.
The base is an octagon. The area is found . Substitute a = 0.5.
The volume is 1.21*2.5 = 3.025.
However, there are three holes drilled out half way which each have volume 0.06.
The volume is found as V = πr²h. Substitute r = 0.125 which is half the diameter of 0.25. Since they go half way, the height is h = 1.25.
V = π(0.125)²(1.25) = 0.06.
Since there are 3, they equal 3*0.06 = 0.18.
Subtract this from the volume.
1.21 - 0.18 = 1.03