Can you draw a graph for me representing this equation : 7x – 400y = –1600
2 answers:
9514 1404 393
Answer:
see attached
Step-by-step explanation:
The trick to drawing a usable graph of this relation is to figure what values of x and y may be of interest. When there is no context for the graph, it is often useful to show the x- and y-intercepts. Each can be found by setting the other variable to 0.
x-intercept = -1600/7 = -228 4/7
y-intercept = -1600/-400 = 4
The slope is 7/400, so the graph is nearly flat when x- and y- axis scaling is the same.
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You can draw the graph yourself using any of the various graphing utilities available, either on the web or as apps for your computing platform. My favorite is the one I used here: Desmos. It is especially nice on a touch-screen, as you can manipulate the scaling easily with your fingers.
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The volume of the composite figure is 263.76 inches³
Step-by-step explanation:
The volume of a cylinder of radius r and height h is
- V = πr²h ⇒ Bh
The volume of a cone of radius r and height h is
- V =
πr²h ⇒
The volume of a sphere with radius r is
- V =
πr³
∵ The figure is made up of a cylinder, a cone, and a half sphere
∵ The radius of the cylinder = 3 inches
∵ The height of the cylinder = 6 inches
∵ π = 3.14
- Use the rule of the volume of the cylinder above
∴ The volume of the cylinder = (3.14)(3)²(6)
∴ The volume of the cylinder = 169.56 inches³
∵ The radius of the cone = 3 inches
∵ The height of the cone = 4 inches
∵ π = 3.14
- Use the rule of the volume of the cone above
∴ The volume of the cone =
∴ The volume of the cone = 37.68 inches³
∵ The radius of the half sphere = 3 inches
∵ π = 3.14
- Use the rule of the volume of the sphere above to find the
volume of the half sphere
∴ The volume of half sphere =
∴ The volume of half sphere = 56.52 inches³
To find the volume of the composite figure add the volumes of the three shapes above
∵ The volume of the composite figure = 169.56 + 37.68 + 56.52
∴ The volume of the composite figure = 263.76 inches³
The volume of the composite figure is 263.76 inches³
Learn more:
You can learn more about the volume in brainly.com/question/12497249
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