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aleksklad [387]
3 years ago
7

What is the common ratio for the following geometric sequence: 4, -20, 100, -500, . . .

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
4 0
Divide any term by the one before it, and you'll get the ratio. -20/4=-5
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Nana76 [90]

Surface area of cone is 60π cm^2

Option A is correct.

Step-by-step explanation:

We are given:

Height = 17cm

Radius= 3cm

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The formula used to find surface area of cone is:

Surface\,\,area\,\,of\,\,cone=\pi r(r+\sqrt{h^2+r^2})

Putting values:

Surface\,\,area\,\,of\,\,cone=\pi r(r+\sqrt{h^2+r^2}) \\Surface\,\,area\,\,of\,\,cone=\pi \,3(3+\sqrt{(17)^2+(3)^2})\\Surface\,\,area\,\,of\,\,cone=\pi \,3(3+\sqrt{289+9)}\\Surface\,\,area\,\,of\,\,cone=\pi \,3(3+\sqrt{298)}\\Surface\,\,area\,\,of\,\,cone=\pi \,3(3+17)\\Surface\,\,area\,\,of\,\,cone=\pi \,3(20)\\ Surface\,\,area\,\,of\,\,cone=60\pi

So, Surface area of cone is 60π cm^2

Option A is correct.

Keywords: Surface area of cone

Learn more about Surface area of cone at:

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5 0
4 years ago
What is the reflection image of P (0, 0) after two reflections, first across x = −3 and then across y = −3? (−6, −6) (−6, −3) (−
Nadya [2.5K]

Answer:

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Step-by-step explanation:

If we reflect P (0,0) across x=-3 and then across y=-3, then the new point of P would be (0-3,0-3)=(-3,-3)

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Answer:

The answer will be A) A'(4,3)

Step-by-step explanation:

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Marrrta [24]

Answer:

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Step-by-step explanation:

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