Find the height of a tree of angle of elevation of its top changes from 25 degree to 50 degree as the observer advance 15m towards its base

please help me fast​

Answers

Answer 1

Answer:

  11.5 m

Step-by-step explanation:

The problem can be solved using a trig relation that relates the side opposite the angle to the side adjacent to the angle. That relation is ...

  Tan = Opposite/Adjacent

The lengths of the adjacent sides of the triangle can be found by rearranging this formula:

  Adjacent = Opposite/Tan

__

The "opposite" side of the triangle is the height of the tree, which we can represent using h. The problem statement tells us of a relation between adjacent side lengths and angles:

  h/tan(25°) -h/tan(50°) = 15 . . . . . moving 15 meters changes the angle

  h(1/tan(25°) -1/tan(50°)) = 15

  h = 15·tan(25°)·tan(50°)/(tan(50°) -tan(25°)) = 15(0.55572/0.72545)

  h ≈ 11.4907 . . . . meters

The height of the tree is about 11.5 meters.

Find The Height Of A Tree Of Angle Of Elevation Of Its Top Changes From 25 Degree To 50 Degree As The

Related Questions

please show all work!! this is algebra.

Answers

Franco:
3x+2y=19
Caryl:
2x+4y=24

now use elimination

-2(3x+2y=19)
1(2x+4y=24)
=
-6x-4y=-38
2x+4y=24
add them together
which equals -4x=-14
divide both sides by -4
-4x/-4=-14/-4
x=7/2


we found x, so we subsitute it into the the original equation

3x+2y=19
3(7/2)2y=19
2y+21/2=19
-21/2 -21/2
2y=17/2
divide by 2 on both sides
2y/2= 17/2/2
y=17/4

so x= 7/2 and y= 17/4


Neon bracelets cost $1 for 4.
What is the cost per bracelet?
At this rate, how much will 11 neon bracelets cost?

Answers

Answer to Q one: $0.25
Answer to Q two: $44

Answer:

its cost 25 cents

in so will cost 275 cent so 2.75

Step-by-step explanation:


what is (x^-2 y^10)^2/x^5 y^-3 using only positive exponents

Answers

Answer:

[tex] \frac{(x^{ - 2}{y}^{10})^{2} }{ {x}^{5} {y}^{ - 3} } \\ \frac{ {x}^{ - 4} {y}^{20} }{ {x}^{5} {y}^{ - 3 } } \\ {x}^{ - 9} {y}^{23} \\ \frac{ {y}^{23} }{ {x}^{9} } \\ ans \: c[/tex]

Is this a function pls someone tell me

Answers

No this is not a function since it does not pass the vertical line test.One x value cannot have 2 or more y values.

hello, please answer the question, please show work

Answers

Answer:

5

Step-by-step explanation:

[tex]\frac{(44+9^2)}{5^2}[/tex] = [tex]\frac{44+81}{25}[/tex] = [tex]\frac{125}{25}[/tex] = 5

5 pounds=. Ounces


I need helppp

Answers

Answer:  80 ounces

Work Shown:

1 pound = 16 ounces

5*(1 pound) = 5*(16 ounces)

5 pounds = 80 ounces

5 pounds = 80 ounces

what value can replace the question mark to make the statment true? 3 2/8 + ? = 7 1/8

Answers

Hello!

Question:

what value can replace the question mark to make the statement true? 3 2/8 + ? = 7 1/8

Answer:

[tex]3\frac{7}{8}[/tex] Option B.

Step-by-step explanation:

Rewriting our equation with parts separated

[tex]= 7+\frac{1}{8}-3-\frac{2}{8}[/tex]

Solving the whole number parts

[tex]7-3=4[/tex]

Solving the fraction parts

[tex]\frac{1}{8} -\frac{2}{8} =-\frac{1}{8}[/tex]

Combining the whole and fraction parts

[tex]4-\frac{1}{8} =3\frac{7}{8}[/tex]

Therefore, the answer is 3 and 7/8

Hope this helps!

If you have any questions please ask!

Hey there!

3 2/8 + x = 7 1/8

13/4 + x = 57/8

x + 13/4 = 57/8

SUBTRACT 13/4 to BOTH SIDES

x + 13/4 - 13/4 = 57/8 - 13/4

SIMPLIFY IT!
x = 27/8

x = 3 7/8


Therefore, your answer is: x = 3 7/8


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

Which of the following lists 3/6, 112, 15/18 in order from least to greatest?

Answers

Answer:

3/6 ⇒ 9/12⇒ 15/18

Step-by-step explanation:

To put the following lists 3/6,9/12, 15/18 in order from least to greatest we can turn the fraction into decimal..

3/6 = 0.5

15/18 = 0.83333333333

9/12= 0.75

Hence from least to greatest:

0.5,0.75, 0.83333333333

Also know as:

3/6,9/12,15/18

~lenvy~

Answer:

Order 3/6, 9/12, and 15/18 from least to greatest.

Keep in mind, there are multiple ways into finding the answer to this question.

First, we must simplify these fractions as much as possible then find a possible common denominator.

3/6 simplifies to 1/2

9/12 simplifies to 3/4

15/18 simplifies to 5/6

Now we have fractions of 1/2(3/6), 3/4(9/12), and 5/6(15/18).

If we look at these fractions, we can see that they have a common denominator of 12. So let's convert these fractions into having a denominator of 12;

1/2 x 6/6 = 6/12

3/4 x 3/3 = 9/12

5/6 x 2/2 = 10/12.

So now we have the fractions 6/12(3/6), 9/12(9/12), and 10/12(5/6).

These are already ordered from least to greatest.

So therefore, this'll be ordered;

3/6, 9/12, and 15/18.

A globe has a diameter of 12 inches. It fits inside a cube-shaped box that has a side length of 12 inches.

​What is the volume, rounded to the nearest hundredth of a cubic inch, of the space inside the box that is not taken up by the globe?

Answers

The volume, rounded to the nearest hundredth of a cubic inch, of the space inside the box that is not taken up by the globe is 823.68 inches³

Volume of a sphere

The globe is a sphere. Therefore, the volume is as follows:

volume = 4 / 3 πr³

where

r = 12  /2 = 6 inches

volume = 4 / 3 × π × 6³

volume = 864 / 3 π

volume = 288 × 3.14  = 904.32inches³

Volume of a cube

The box is a cube. Therefore,

volume = L³

where

L = length

Therefore,

volume = 12³

volume = 1728 inches³

Therefore, the volume of the space inside the box that is not taken up by the globe is as follows:

volume not taken up = 1728 - 904.32 = 823.68 inches³

learn more on volume here: https://brainly.com/question/15385003

What is an advantage of renting a place to live? lower up-front costs payments change from month to month low down payment increasing equity over tim

Answers

Answer:

LOWER UPFRONT COSTS

Step-by-step explanation:

you're welcome ;)

AYUDA ES PARA HOY ayudaaaaaaaaaa

Answers

La respuesta seria -4

Answer:

The answer is 12

Step-by-step explanation:

Steve bought 24 ounces of his favorite cereal. He put equal amounts of the cereal in 4 containers. How many ounces did he put in each container?​

Answers

The answer is
24 devidid by 4 is 6

mia kicked a football. the function f models the height of the ball above the ground (in meters) as a function of time (in seconds) after mia kicked it.

Answers

Answer:

Step-by-step explanation:

f(t)= 20t-5t^2

Answer:

(4,0)

Step-by-step explanation:

I did it on khan and got it right :)

How many ice cream desserts consisting of four scoops, of either vanilla or hazelnut flavor, are possible

Answers

2 flavors and 4 scoops


total different possibilities = 2^4 = 16


answer: 16

write an expression that is equivalent to 21h - 10h + 16 - 9 + 14h + 5 .

Answers

Answer:

25h+12

Step-by-step explanation:

Add the numbers :

21h-10h + 16-9 + 14h+ 5

21h-10h + 12 + 14h

Combine like terms:

25h + 12

solve each of the following equations
1)x+8-15

Answers

Answer:

x - 7

Step-by-step explanation:

x + 8 - 15

Subtract 15 - 8 = 7

x  - 7

~Lenvy~

A triangle has two sides of length 14 and 19. What is the largest possible whole-number length for the third side?

Answers

its 33 I checked it mark the one above me brainiest

YELLOW If this is the Math Test Results of all 300 seventh graders
at a school, how many of the kids earned an A?

Answers

Answer:

13%

Step-by-step explanation:

Please Help! Will Give Brainlest!

Answers

Answer:

y = - 1

Step-by-step explanation:

the midline is positioned midway between the maximum and minimum values , that is

maximum value = 2 and minimum value = - 4 , then

y = [tex]\frac{2-4}{2}[/tex] = [tex]\frac{-2}{2}[/tex] = - 1

equation of midline is y = - 1

Help as soon as possible thank you

Answers

Answer:    14.28

==========================================================

Explanation:

The full circle has a circumference of

C = 2*pi*r

C = 2*3.14*4

C = 25.12

Divide this by four because we only want a quarter circle (and not the whole thing). Imagine cutting a pizza into four equal slices, and we only focus on one slice.

The curved portion of the slice is roughly 25.12/4 = 6.28 units long.

Add on the two straight line portions of the quarter circle to get 6.28+4+4 = 14.28

The straight line portions are the radius.

The answer of 14.28 is approximate because pi = 3.14 is approximate.

The baker used 18 eggs for 5 cakes. How many eggs were used per cake?

Answers

Answer:

3.6 eggs

Step-by-step explanation:

You would divide 18 by 5 to find how much eggs used per 1 cake.

18 ÷ 5 = 3.6

Answer:18 x 5 so that would make it 90.

I think that's correct.

The area of a circular fountain is 121pi square feet. What is the diameter of the fountain?

Answers

Answer:

22 feet

Step-by-step explanation:

Area of circle = pi(r²)

the square root of 121 is 11, so r = 11

d = 2r

d = 22

b= c= Please help asap

Answers

b= 20°
and c = 160°

b is equal to the given angle, b = 20°

c is 180 - 20 = 160°

Please Help! If the triangle above is reflected over the y-axis, what is the correct coordinate for A'?

Answers

Answer:

A'(2,5)

Step-by-step explanation:

The position of point A is at (-2,5), and when you reflect it over the y-axis, you just have to switch the signs of the x-coordinate value.

Answer:

A'(2, 5)

Step-by-step explanation:

If the triangle is reflected over y-axis, the y-axis will be a symmetry line then the distance between A and y will remain the same but opposite sign which is 2 units ( -2 become 2 )

A coffee shop offers small, medium, and large sizes. Customers can choose
between French roast and Italian roast.

Answers

Answer:

6

Step-by-step explanation:

small with french roast or italian roast =2

medium with french roast or italian roast =2

large with french roast or italian roast =2

All of them combined =6 possible out comes

What is the slope for the graph shown? Leave he answer as a fraction and simplify if necessary

Answers

Answer:

Slope 1/3

Step-by-step explanation:

Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!

Answer:

slope = [tex]\frac{1}{3}[/tex]

Step-by-step explanation:

calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (3, - 1) and (x₂, y₂ ) = (9, 1) ← 2 points on the line

m = [tex]\frac{1-(-1)}{9-3}[/tex] = [tex]\frac{1+1}{6}[/tex] = [tex]\frac{2}{6}[/tex] = [tex]\frac{1}{3}[/tex]

Find m< A
Round to the nearest degree

Answers

Answer:

a bit more than 48°

Step-by-step explanation:

We use the law of cosines for this.

The theorem is an extension of pythagoras' theorem, working for all triangles. In our case

[tex]\overline{BC}^2=\overline{AB}^2+\overline{AC}^2-2\overline{AB}\cdot\overline{AC}cos \hat A[/tex]

Let's replace all the values we have and find whatever is left.

[tex]10^2=11^2+13^2-2(11)(13)cos \hat A\\-286cos\hat A = -190\\cos \hat A\approx 0.6643 \rightarrow \hat A \approx 48\°[/tex]

2. Determine whether the two functions are inverses.
f (x) = 1/2 x-3
g(x)= 2x+6

please help

Answers

Answer:

The two functions are inverses.

Step-by-step explanation:

Recall what an inverse is:

When you inverse an equation, like y = 2x for example, you switch, the y and x values. So you'd now have x = 2y, then x/2 = y.

In a case like that we'd say that, y = 2x, and y = x/2 are inverses of each other.

Now looking at your question, all we'd need to do is take the inverse of 1, and see if it matches up with the other one. So pick a function. I'll choose g(x) and I'll inverse it.

[tex]g(x) = y = 2x + 6[/tex]

get rid of the g(x), as it doesn't help you anymore.

[tex]y = 2x + 6[/tex]

then, switch the x and the y.

[tex]x = 2y + 6[/tex]

then isolate for y.

[tex]x - 6 = 2y[/tex]

[tex]\frac{x-6}{2} = y[/tex]

Now let's see, does [tex]f(x) = \frac{1}{2}x - 3[/tex] equal [tex]\frac{x-6}{2}[/tex] ? Well actually yes.

We just didn't simplify all the way.

[tex]\frac{x-6}{2} = y\\[/tex]

divide each term by 2

[tex]\frac{x}{2} - 3 = y[/tex]

[tex]\frac{x}{2}[/tex] can be written as [tex]\frac{1}{2}x[/tex] so we get

[tex]\frac{1}{2}x - 3[/tex] which is equal to f(x)

Therefore the 2 functions are inverses.

Q.E.D

Find the missing value in the table
(Ignore all the writing I did already I think it’s wrong but I’m not sure)

Answers

Answer:

Step-by-step explanation:

#1 is correct

#2 is correct

#3 is correct

#4 is correct

#5  is correct

#6 is 29.6

The perimeter of the triangular park shown on the right is 15x+2 . What is the missing​ length? The other two lengths are 5x-1 and 4x+4

Answers

Answer:

6x - 1

Step-by-step explanation:

Side 1: 5x - 1

Side 2: 4x + 4

Side 3: Unknown, y

Perimeter: 15x + 2

Perimeter = Side 1 + Side 2 + Side 3

15x + 2 = 5x - 1 + 4x + 4 + y

15x + 2 = 9x + 3 + y

6x - 1 = y

y = 6x - 1

Side 3 = 6x - 1

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