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3 years ago

HOW CAN ARITHMETIC AND GEOMETRIC SEQUENCES BECOME LINEAR AND EXPONENTIAL FUNCTIONS?

1 answer:

vladimir1956 [14]3 years ago

3 0

A sequence is a set of numbers, called terms, arranged in some particular order. An arithmetic sequence is a sequence with the difference between two consecutive terms constant. The difference is called the common difference. A geometric sequence is a sequence with the ratio between two consecutive terms constant.

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A college faculty consists of 400 men and 250 women. The college administration wants to draw a sample of 65 faculty members to

galina1969 [7]

Answer:

The type of sample is Stratified sampling.

Step-by-step explanation:

Consider the provided information.

Types of sampling.

Random sampling is similar to placing the name of everyone in a hat and pulling out a few names.

In Systematic sampling, we list of elements is counted off.

Convenience sampling: data which is readily available is used. That is, the first people are running into by the surveyor.

In Cluster sampling, we divide the population into groups, usually geographically.

In Stratified sampling we divide population into groups called strata. but this time population might be separated into males and females.

Here the population is divided into groups of males and females therefore it is stratified sampling.

Hence, the type of sample is Stratified sampling.

5 0

3 years ago

There are 6 gray keys for every 11 black keys. Also, the number of black keys is 2 less than twice the number of gray keys. Use

emmainna [20.7K]

$\text{ Answer: There are }12\text{ gray keys.}\\\\\text{ there are }22\text{ black keys.}$

Explanation:

Since we have given that

There are 6 gray keys for every 11 black keys .

So, the ratio will be 6:11

Let the number of gray keys be 6x

Let the number of black keys be 11x

Now, according to question,

$11x=2\times 2x-2\\\\11x=12x-2\\\\11x-12x=-2\\\\-x=-2\\\\x=2$

so,

$\text{ there are }6x=6\times 2=12\text{ gray keys.}\\\\\text{ there are }11x=11\times 2=22\text{ black keys.}$

8 0

3 years ago

If a number minus 3 is at most 12, or 1 more than 2 times the number is at least 25, then the number must be less than or equal

dezoksy [38]

Answer:

The statement is true.

Step-by-step explanation:

Let us assume that x is the required number.

Now, given that the number minus 3 is at most 12.

Hence, x - 3 ≤ 12

⇒ x ≤ 15 ......... (1)

And also given that 1 more than 2 times the number is at least 25.

Hence, 2x + 1 ≥ 25

⇒ 2x ≥ 24

⇒ x ≥ 12 .......... (2)

Therefore, from equations (1) and (2) we get the number must be greater than or equal to 12 or less than or equal to 15.

So, the statement is true. (Answer)

3 0

3 years ago

Analyze the data sets below. Which of the following statements are true? Select all that apply. (Algebra Nation Test Yourself)

Ray Of Light [21]

I know the 1st and last one but i’m not sure on the rest sorry :(

8 0

2 years ago

Read 2 more answers

Questions are shown in the picture, any help is appreciated! :)

cestrela7 [59]

A) 13 students
b) 13 students
c) 37 students

7 0

3 years ago