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Pie
2 years ago
14

Please Help!Please Help!Please Help!Please Help!Please Help!Please Help!Please Help!Please Help!Please Help!Please Help!Please H

elp!Please Help!Please Help!

Mathematics
1 answer:
gogolik [260]2 years ago
4 0

Answer:

  (a)  no solution

Step-by-step explanation:

Writing the second equation in slope-intercept form, it becomes ...

  3x -y = 2 . . . . given

  y = 3x -2 . . . . add y-2 to both sides

The first equation is already in slope-intercept form:

  y = 3x +3 . . . . first equation

The coefficients of x in the two equations are both 3, so the lines they describe are parallel. They do not intersect, so there is <em>no solution</em>.

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Can you step by step solve 20x+12=4x-16
Murljashka [212]

Answer:

x = - \frac{7}{4}

Step-by-step explanation:

Given

20x + 12 = 4x - 16 ( subtract 4x from both sides )

16x + 12 = - 16 ( subtract 12 from both sides )

16x = - 28 ( divide both sides by 16 )

x = \frac{-28}{16} = - \frac{7}{4} [ = - 1.75 ]

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3 years ago
What is mutipulcation?
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Answer: The process of combining matrices, vectors, or other quantities under specific rules to obtain their product.
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if the mean score of 12 students in maths is 5 and the mean score of another 10 students is 6. Calculate the average score of 22
Kaylis [27]
The answer is 5.(5+6) divided by 2=5.5
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3 years ago
Read 2 more answers
Explain the difference between a stratified sample and a cluster sample. (Select all that apply.) In a cluster sample, the only
ziro4ka [17]

Answer:

  • In a cluster sample, every sample of size n has an equal chance of being included.
  • In a stratified sample, random samples from each strata are included.
  • In a cluster sample, the clusters to be included are selected at random and then all members of each selected cluster are included.
  • In a stratified sample, every sample of size n has an equal chance of being included

Step-by-step explanation:

In a stratified sample the population is divided into different segments and then we take random elements from each segment.

In a cluster sample, the sample is divided into segments (or clusters) and then the sample is taken by selecting different clusters.

Therefore, in the cluster sample we take ALL elements from different clusters while in a stratified sample we take SOME elements from the different sections.

Now let's take a look at the options given:

  • In a cluster sample, the only samples possible are those including every kth item from the random starting position: FALSE. In the cluster sample we select all items from the cluster.
  • In a cluster sample, every sample of size n has an equal chance of being included: TRUE. if we divide the sample into clusters of size n then every cluster has an equal chance of being selected (since we select them at random).
  • In a stratified sample, random samples from each strata are included: TRUE. We already said that we take a random sample from each segment (strata).
  • In a stratified sample, the only samples possible are those including every kth item from the random starting position: FALSE. We can apply different methods to select our sample from each strata.
  • In a cluster sample, the clusters to be included are selected at random and then all members of each selected cluster are included. TRUE. This is the definition of cluster sample we wrote at first.
  • In a stratified sample, every sample of size n has an equal chance of being included: TRUE, we take samples from elements, not from stratas.
  • In a cluster sample, random samples from each strata are included: FALSE. This is the definition of stratified sample.
  • In a stratified sample, the clusters to be included are selected at random and then all members of each selected cluster are included: FALSE. This is the definition of cluster sample.

8 0
3 years ago
Write the numbers in each circle that is described by the attribute written outside the circle. Numbers in the overlapping regio
exis [7]

The attached image represents the completed Venn diagrams

<h3>How to complete the circles?</h3>

<u>Diagram 1</u>

We have:

Multiples of 3 and Multiples of 10

When the sets are populated, we have:

Multiples of 3 = 3, 6, 9, 12, 15, 18, 21, 24, 27, 30

Multiples of 10 = 10, 20, 30

Both = 30

Next, we complete the circles using the above data values

See attachment 1

<u>Diagram 2</u>

We have:

Multiples of 2, Multiples of 3 and Multiples of 5

When the sets are populated, we have:

Multiples of 2 = 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30

Multiples of 3 = 3, 6, 9, 12, 15, 18, 21, 24, 27, 30

Multiples of 5 = 5, 10, 15, 20, 25, 30

Multiples of 2 and 3 = 6, 12, 18, 24 and 30

Multiples of 2 and 5 = 10, 20 and 30

Multiples of 3 and 5 = 15 and 30

All = 30

Next, we complete the circles using the above data values

See attachment 2

Read more about Venn diagrams at:

brainly.com/question/4910584

#SPJ1

3 0
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