19. From the table above, given that the ten averages are those of ten students instead of 10

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.

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7 0

2 years ago

Correctly identify the following anatomical features of the olfactory receptors.

oksano4ka [1.4K]

Olfactory receptors are structurally defined to form columns of cells in the olfactory epithelium of the nose.

<h3>What are olfactory receptors?</h3>

Olfactory receptors are nerve cells found in the nose that receive stimuli (smells) from the surrounding environment.

Olfactory receptors are elongated-shaped cells that form columns on the olfactory epithelium in the nose.

In conclusion, olfactory receptors are structurally defined to form the olfactory epithelium in the nose.

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7 0

2 years ago

Describe the factors that affect energy use worldwide.

guajiro [1.7K]

Answer:

The more you use, the more you have

When you drink water (or any liquid).

Explanation:Similar for food: From a caloric standpoint, a McSupersized extra value meal should provide you with plenty of fuel to use. But how do you feel after you eat one of those? Unless you’re starving, less is more when it comes to food.Same for sleeping: Logging in 12-hour sessions seems like it should ready you for the day, but usually it leaves you dragging. Unless you’re sleep deprived, it’s worth seeing what happens when you sleep just a little less.Healthy people drink a lot of water, as well they should. But consider when you’re drinking that water: If you’re drinking it with your meal, you could be impairing your digestion.Not only does water dilute the gastric juices required to digest food, it also exits the stomach after just a few minutes, taking those juices with it and making digestion difficult. And since digestion accounts for 5 to 15 percent of your energy expenditure, that’s something you should care about.

7 0

3 years ago

A few years ago, it came as a surprise when apple's iphone 4 was found to have a problem. Users complained of weak reception, an

VladimirAG [237]

The population being all iPhone 4 users is True

The 2% denote the sample statistic.

<h3>Sample statistic</h3>

This refers to the figures which are computed through the available data for

an item. Examples include:

Mean

Median

Percentile

The population being all iphone 4 user is true because it is the item that has

the data provided and is being talked

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6 0

2 years ago

Which of the following are characteristics of chytridiomycota? check all that apply. Flagellated spores spores produced in the a

wolverine [178]

The characteristics of chytridiomycota will include the following:

flagellated spores
important in the digestion of animals
can cause disease in plants can
cause disease in animals

<h3>What are Chytridiomycota?</h3>

Chytridiomycota, which are commonly referred to as sac fungi, are a division of zoosporic organisms in the kingdom Fungi. They are also known as chytrids.

Chytridiomycota live parasitically and saprophytically that possess flagellated spores. They can cause harm to human produce also and also animals.

Therefore, the characteristics of chytridiomycota will include the following:

flagellated spores
important in the digestion of animals
can cause disease in plants can
cause disease in animals

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3 0

2 years ago