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3 years ago

How are nebulae and stars related? select the three correct answers.

SAT

2 answers:

vazorg [7]3 years ago

8 0

Answer:

Stars start as nebulae. A nebula is a large cloud of gas and dust. Gravity can pull some of the gas and dust in a nebula together. The contracting cloud is then called a protostar.

tekilochka [14]3 years ago

7 0

Answer:

you didn't put the answer choices

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Match each job example with its career cluster.

Sloan [31]

Answer:

Mee - Finance

Masako - Health Science

Sabine - Energy

Orville - Human Services

Harris - Hospitality and Tourism

Explanation:

Loan counsellor means she will work with loans od money meaning she manages a branch of finance (money-related).

Surgeon means she is in the medicine industry which helps to maintain public health.

Power plants are responsible for providing energy to large groups of people.

Mental Health Counsellors provide human services to other humans by talking to and helping others.

Hotel clerks manage hotels which take guests and are therefore part of the hospitality and tourism.

Hope this helped!

6 0

3 years ago

What are you unlikely to find at Chichicastenango? computers food drummers antiques

mrs_skeptik [129]

Answer:

most likely computers, im in the middle of the test, ill reassure in explanation

Explanation:

yep i was right

5 0

3 years ago

Read 2 more answers

based on the graph, predicted population growth in which of the following regions is explained by a high total fertility rate?

kotegsom [21]

Answer:

None of them

Explanation:

because there is no graph hence nothing can be done

5 0

3 years ago

The ratio of the amount of vitamin A in cow milk to the amount of vitamin A in goat milk is

miv72 [106K]

Answer:

2080 IU

Explanation:

Given

Ratio of vitamin A in cow milk to goat milk = 3 : 4

Required

Determine the content of vitamin A in goat milk if cow milk has 1560 IU

The given parameters shows a direct proportion.

Let G represents Goat and C represent Cow

Given that there exists a direct proportion;

C = K * G where K represents the constant of proportionality.

Solving for K when C = 3 and G = 4

C = K * G becomes

3 = K * 4

3 = 4K

Divide through by 4

¾ = K

K = ¾

Now, solving for G given that C = 1560IU;

We'll make use of the same formula as above

C = K * G

Substitute 1560 for C and ¾ for K; the expression becomes

1560 = ¾ * G

Multiply both sides by 4

4 * 1560 = 4 * ¾ * G

6240 = 3 * G

Multiply both sides by ⅓

⅓ * 6240 = ⅓ * 3 * G

2080 = G

G = 2080

Hence, the vitamin A in the goat milk is 2080IU

5 0

3 years ago

To compare the average amount of time that canadians and americans spend commuting, a researcher collects a sample of canadians

yKpoI14uk [10]

The standard error of the difference of sample means is 0.444

From the complete question, we have the following parameters

<u>Canadians</u>

Sample size = 50
Mean = 4.6
Standard deviation = 2.9

<u>Americans</u>

Sample size = 60
Mean = 5.2
Standard deviation = 1.3

The standard error of a sample is the quotient of the standard deviation and the square root of the sample size.

This is represented as:

$SE = \frac{\sigma}{\sqrt n}$

The standard error of the Canadian sample is:

$SE_1 = \frac{2.9}{\sqrt{50}}$

So, we have:

$SE_1 = 0.41$

The standard error of the American sample is:

$SE_2 = \frac{1.3}{\sqrt{60}}$

So, we have:

$SE_2 = 0.17$

The standard error of the difference of sample means is then calculated as:

$SE= \sqrt{SE_1^2 + SE_2^2}$

This gives

$SE= \sqrt{0.41^2 + 0.17^2}$

$SE= \sqrt{0.197}$

Take square roots

$SE= 0.444$

Hence, the standard error of the difference of sample means is 0.444