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3 years ago

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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Find the surface area of the cone in terms of pi.

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

We need to find surface area of cone in terms of π.

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:

#learnwithBrainly

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:

(-3,-3)

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)

4 0

4 years ago

If the rectangle ABCD rotated 90 degrees clockwise, which coordinate

pashok25 [27]

Answer:

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

Step-by-step explanation:

90 degrees will send the rectangle to Quadrant 1, the rectangle itself has also been rotated so by rotating the rectangle 90 degrees and putting it in place for quadrant 1, it should give you the answer.

(You can also rotate the image)

3 0

3 years ago

Read 2 more answers

Which function is an odd function?

Alinara [238K]

I think the answer is the first one, because it needs to be negative. <span />

6 0

3 years ago

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ANSWER ASAP #6 on WILL GIVE BRAINIEST TO ANSWER FIRSTTT

Marrrta [24]