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Andrej [43]
3 years ago
9

The sun is 24 degreesabove the horizon. It makes a 51 m long shadow of a tall tree. how talll is the tree

Mathematics
1 answer:
Advocard [28]3 years ago
8 0

Answer:

The tree is approximately 22.707 meters tall.

Step-by-step explanation:

The geometric diagram of the problem is included below as attachment. The height of the tree is found by means of trigonometric functions:

\tan \alpha = \frac{h}{w}

Where:

\alpha - Elevation angle, measured in sexagesimal degrees.

h - Height of the tree, measured in meters.

w - Length of the tree shadow, measured in meters.

The height of the tree is cleared in the equation:

h = w\cdot \tan \alpha

If w = 51\,m and \alpha = 24^{\circ}, the height is:

h = (51\,m)\cdot \tan 24^{\circ}

h \approx 22.707\m

The tree is approximately 22.707 meters tall.

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A ride at an amusement park moves the riders in a circle at a rate of 8.0 m/s. The radius of the ride is 4.0 meters. What is the
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Step-by-step explanation:

I got it right when graded.

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2 years ago
Please help me out. Answer quick
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Answer: See below

Step-by-step explanation:

1. (fоg)(x) means f of g(x). You would plug in g(x) into f(x).

(fоg)(x)=3(4x²-5)-3

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(fоg)(x)=12x²-18

_____________________________________________________

2. (gоf)(x) means g of f(x). You would plug in f(x) into g(x).

(gоf)(x)=4(3x-3)²-5

(gоf)(x)=4(9x²-18x+9)-5

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_____________________________________________________

3. (fоg)(0) means f of g(0). You would plug in g(0) into f(x).

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(fоg)(0)=-15-3

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4. (gоf)(0) means g of f(0). You would plug in f(0) into g(x).

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7 0
4 years ago
Given f as described below.
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Answer with Step-by-step explanation:

We are given that a function

f:W\rightarrow W

Assign each whole number to its largest place value digit.

f(4)=4

f(14)=4

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We have to find the value of x that makes the equation 7 a true statement.

When f(x)=7

Then, the possible values of x are 7,127,27,257,... .

Because f(7)=7

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3 years ago
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Answer:

a) H0: p > 0.0016

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Step-by-step explanation:

A null hypothesis states that there is no relation between two variables, it's what the researcher wants to discredit.

On the other hand, the alternative hypothesis is what the researcher tries to prove.

<u>The claim of this entomologists is that fewer than 16 in ten thousand male fireflies are unable to produce light due to a genetic mutation. Therefore, this claim is what he wants to prove and it would be the alternative hypothesis.</u>

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The null hypothesis would be the opposite of the alternative hypothesis and therefore it would be:

H0: p > 0.0016

6 0
3 years ago
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