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3 years ago

What do cave passages at several different depths most likely indicate?

2 answers:

7 0

In order to help the student expand his/her knowledge I will help answer the question. This in hope that the student will get a piece of knowledge that will help him/her through his/her homework or future tests.

The different rates of erosion are what a cave with several different depths most likely indicates. This is due to the fact that caves are formed by a combination of erosion, pressure and tectonic forces.

The correct choice is A. different rates of erosion

I hope it helps, Regards.

eduard3 years ago

4 0

Answer:

The answer is A. different rates of erosion hopefully this helps!

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In what nation did high school seniors return to class this week, though dozens of schools closed two hours after they opened be

Lilit [14]

Answer:

Quebec in eastern Canada

Explanation:

The number of cases of coronavirus is increasing day by day in Canada. Most of those deaths are in Quebec in eastern Canada. Despite the increase in numbers in Quebec, children were asked to return to classrooms while taking the following precautions.

1. Each class should have a maximum of 15 students.

2. Desks were to be kept at some distance.

Also, schools took several measures to ensure physical and social distancing.

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3 years ago

PLEASE HELP! Which of the following happens when a low-mass star runs out of fuel? Choose all that apply.

Bess [88]

C) Its core becomes a white dwarf.

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3 years ago

Weakened rock on steep slopes that suddenly gives away and falls down is an example of what? A) the impact of gravity B) the imp

Evgesh-ka [11]

Weakened rock on steep slopes that suddenly gives away and falls down is an example of : A. The impact of Gravity.

Gravity will always caused forces that pulled the rock down. Eventually, the rock on steep slopes will be weakened and pulled by the Gravity

hope this helps

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3 years ago

Read 2 more answers

What are four key features of our solar system that any theory of solar system formation must be able to explain?

tatuchka [14]

Answer:

a. Planets fall into two major categories.

b. The Sun generates energy through fusion of hydrogen into helium.

c. The solar nebula collapsed due to gravity.

d. There are vast numbers of asteroids and comets.

Explanation:

The four key features if the solar system are given as above and as they have led to the formation of the solar system.

Most of the planets fall into two categories that are gaseous giants and the other terrestrial planets. As the effects of the solar winds from the solar chromosphere.

The sun itself is running on the fusion of hydrogen and helium elements in its core and thus is fueled by this energy.

The solar nebula was a cloud of dust and gases that itself began to spin and the small particles under the gravity were pulled closer.

There are about 100 billion comets and asteroids in the solar system,

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2 years ago

ACT scores of a sample of UTC students are shown below. Student ACT Score A 22 B 28 C 20 D 21 E 28 F 23 G 26 a. Compute the mean

alisha [4.7K]

Solution :

a). Let x denotes ACT scores.

ACT scores = $\{ 22,28,20,21,28,23,26 \} ; n = 7$

Mean, $(\overline x)=\frac{\sum x_i}{n}$

$=\frac{168}{7}=24$

Sample variance, $S^2=\frac{1}{n-1}\left(\sum x_i^2-n\overline x^2 \right)$

$=\frac{1}{6}(4098-7 \times 24^2)$

$=\frac{66}{6}$

= 11

b). To test whether or not variance of ACT scores of population (say $\sigma^2$ ) of the UTC students is significantly more than 8.

Consider the hypothesis :

$H_0: \sigma^2 \leq8$ vs $H_a: \sigma^2 >8$

It is a right tailed test and α = 0.05

We have

$x^2_{n-1} = \frac{(n-1)s^2}{\sigma^2}$

So test statics is

$x^2_7=\frac{(7-1)11}{8}$

$=\frac{6 \times 11}{8}$

= 8.25

Since our $\text{test statistics is less than the critical value }$ and it falls in a acceptation region, hence we fail to reject $H_0$ and conclude that variance is not greater than 8 significantly.

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2 years ago