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3 years ago

Which of the statements listed below is negative aspect of a volcanic eruption.

1 answer:

5 0

The ecliptic is the plane of Earth's orbit around the Sun. From the perspective of an observer on Earth, the Sun's movement around the celestial sphere over the course of a year traces out a path along the ecliptic against the background of stars.

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What is common form of water

serg [7]

Answer:

liquid

Explanation:

the form of water has a matter of liquid

8 0

3 years ago

Pat needs to determine the height of a tree before cutting it down to be sure that it will not fall on a nearby fence. the angle

Mekhanik [1.2K]

The height of the tree, which Pat needs to determine, before cutting it down to be sure that it will not fall on a nearby fence is 111 ft.

<h3>What is right angle triangle property?</h3>

In a right angle triangle, the ratio of the opposite side to the base side is equal to the tangent angle between them.

$\tan\theta=\dfrac{b}{a}$

Here, (b) is the opposite side, (a) is the base side.

Pat needs to determine the height of a tree before cutting it down to be sure that it will not fall on a nearby fence.

The angle of elevation of the tree from one position on a flat path from the tree is

$H=40^o$

From a second position,

$I=60\rm\; ft$

Farther along this path it is,

$b=30^o$

Let the distance between tree and first position is x. Thus, from the trigonometry,

$\tan 40=\dfrac{h}{x}\\h=x\tan 40$ ....1

The distance between tree and second position is (x+60) ft. Thus, again from the trigonometry,

$\tan 30=\dfrac{h}{x+60}\\h=(x+60)\tan 40$ ......2

Compare the equation 1 and 2,

$x\tan (40)=(x+60)\tan 30\\0.839x=0.577x+34.64\\0.839x-0.577x=34.64\\x=\dfrac{34.64}{0.262}\\x=132.25\rm\; ft$

Put this value in equation 1 as,

$h=(132.25)\times \tan40\\h\approx111\rm\;ft$

Thus, the height of the tree, which Pat needs to determine, before cutting it down to be sure that it will not fall on a nearby fence is 111 ft.

Learn more about the right angle triangle property here;

brainly.com/question/22790996

#SPJ1

7 0

2 years ago

If V6x – 9 = x, what is the value of x ?

mars1129 [50]

Answer:

9/5

Explanation:

First we took the variables at one side then just solves it....

3 0

3 years ago

Discuss what it means to internalise rules ,values ,how adults and teachers can help learners to do this ?

max2010maxim [7]

When a person is said to internalise a value, it simply means that those values have become a part of that person and it is integrated as part of his value system.

In schools, teachers try to internalise the good values in children such as respect, obedience, hard work, morality, etc.

A teacher or another adult can do this in a kid by teaching them how to say please when they want something, thank you when they want to show appreciation and sorry when they offer an apology.

Learners can do this by positively reinforcing good values and punishing bad values in children.