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Bogdan [553]
3 years ago
10

I need help on my algebra 1 homework ! If anyone could help it would be greatly appreciated.

Mathematics
1 answer:
viktelen [127]3 years ago
8 0
Hello. I am pretty sure if this is right.

for #2, you figure out the slope with rise/run. y2-y1/x2-x1= 0--1/12-17= 1/-5.

m=1/-5 I believe :)
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The curved surface area of a cylinder is 880cm2 and its volume is 770cm3.Find its diameter and height.
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Answer:

The height of cylinder is: h = 80.07 cm

The diameter of cylinder is: d = 3.5 cm

Step-by-step explanation:

Curved surface area of cylinder = 880 cm^2

Volume of cylinder = 770 cm^3

We need to find its diameter and height.

The formula used are:

Curved\: surface\: area=2\pi rh\\Volume=\pi r^2h

If we divide volume by curved surface, we can find radius

\frac{Volume}{Curved\: surface\: area}=\frac{\pi r^2h}{2\pi rh}  \\\frac{770}{880}=\frac{r}{2}\\0.875=  \frac{r}{2}\\=> r= 0.875\times 2\\r=1.75

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Now, we can find height using curve surface area formula:

Curved\: surface\: area=2\pi rh\\880=2(3.14)(1.75)h\\h=\frac{880}{10.99}\\h=80.07 \:cm

So, the height of cylinder is: h=80.07 cm

Now finding diameter using formula: d=2r

Putting value of r in above formula:

d=2r\\d=2(1.75)\\d=3.5\:cm\\

So, the diameter of cylinder is: d = 3.5 cm

5 0
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