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VLD [36.1K]
3 years ago
6

Which of the following is a geometric sequence? Help pleaseee!

Mathematics
2 answers:
ioda3 years ago
7 0

Answer: B

Step-by-step explanation:

Division of components are consistent  - the same

Natalija [7]3 years ago
3 0

Answer:

B. -3, 3, -3, 3...

Step-by-step explanation:

There's two types of sequences, arithmetic and geometric.

Arithmetic equations are<u> sequences that increase or decrease by adding or subtracting the previous number.</u>

For example, take a look at the following sequence:

2, 4, 6, 8, 10, 12, 14, 16, 18, 20...

Here, the numbers are increasing by +2. [adding]

So, this the sequence is arithmetic, since its <u>adding</u>.

Geometric sequences are <u>sequences that increase or decrease by multiplying or dividing the previous number.</u>

For example, take a look at the following sequence:

2, 4, 16, 32, 64, 128, 256, 512...

Here, the numbers are icnreasing by x2. [multiplying]

So, the sequence is geometric since its <u>multiplying</u>.

Based on this information, the correct answer is "B. -3, 3, -3, 3..." since its being multiplyed by -1.

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4 years ago
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iragen [17]
I manually graphed the equation

5 0
3 years ago
‼️GEOMETRY‼️
ella [17]

Answer:

A.) 1018 square inches

Step-by-step explanation:

The largest sphere will have a diameter equaling the length of the cube (see picture).

If the side length of the cube is 18 inches, the diameter of the sphere is also 18 inches. Use the surface area formula for a circle:

SA=4\pi r^2

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\frac{18}{2}=9

The radius is 9 inches. Plug this into the equation:

SA=4\pi *9^2

Simplify the equation:

SA=4\pi *81\\\\SA=324\pi \\\\SA=1017.87

Round the result to the nearest whole number:

1017.87 → 1018

The surface area is 1,018 inches².

:Done

Picture:

In a 2D version, we can clearly see that if the circle fits snuggly inside of the square, the diameter of a sphere is the same as the length of a side of the cube.

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42  \leq x

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