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3 years ago

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 sequences that increase or decrease by adding or subtracting the previous number.

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 adding.

Geometric sequences are sequences that increase or decrease by multiplying or dividing the previous number.

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 multiplying.

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

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Eight members of the Math club equally shared three pizzas. Expressed as a fraction,whAt part of a pizza did each member receive

Vera_Pavlovna [14]

3/8 of a pizza.

If you divide each pizza into eight parts, each member would receive 1/8 of one pizza. Since there are three pizzas, each member would receive three 1/8 of a pizza, or 3/8.

You can prove this answer by multiplying 3/8 by 8, to get 24/8 simplified to 3.

4 0

3 years ago

I need help please!!

guajiro [1.7K]

13-11 = 2

15-13 = 2

17-15 = 2

As you can see, the numbers increased by two. hence the answer is 2.

5 0

2 years ago

I know the answers but I don't know how to solve it

lutik1710 [3]

You did it right. 1.35 + 7.00 and you have the right answer. is that what you mean?

4 0

3 years ago

The bill for a meal at a restaurant before tax is $84.00. the sales tax rate is 7% and you want to leave a 20% tip based on the

Strike441 [17]

The pree tax amount count as 100%, then there's the 7% tax and lastly the 20% tip. therefore, one would pay (100+20+7)% of $84.00.
127% of $84.00
(127/100) * $84.00 = $106.68

4 0

3 years ago

A survey found that 89% of a random sample of 1024 American adults approved of cloning endangered animals. Find the margin of er

Kobotan [32]

Answer:

The margin of error for the survey is 0.016

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1024

Sample proportion:

$\hat{p} = 89\% = 0.89$