1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Neporo4naja [7]
3 years ago
11

The length of the shadow of a pole on level ground increases by 90m when the angle of elevation of the sun changes from 58° to 3

6°.Calcule the height of the pole
Mathematics
1 answer:
siniylev [52]3 years ago
8 0
<h3>Answer: Approximately 119.76 meters</h3>

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

Work Shown:

x = starting length of the shadow

y = height of the pole

tan(angle) = opposite/adjacent

tan(58) = y/x

1.6003345 = y/x

1.6003345x = y

x = y/1.6003345

x = (1/1.6003345)y

x = 0.62486936y

-------------------------

When the angle changes, the adjacent side gets 90 meters longer

tan(angle) = opposite/adjacent

tan(36) = y/(x+90)

0.72654253 = y/(0.62486936y+90)

0.72654253(0.62486936y+90) = y

0.453994166y + 65.3888277 = y

65.3888277 = y-0.453994166y

65.3888277 = 0.546005834y

0.546005834y = 65.3888277

y = 65.3888277/0.546005834

y = 119.758478075162

y = 119.76

The height of the pole is about 119.76 meters.

You might be interested in
Use the distributive property to write an equivalent expression.<br> 9(9x+2y-6)
Marizza181 [45]

Step-by-step explanation:

Multiply the number outside the brackets to the numbers inside:

So,

9 * 9x = 81x

9 * 2y = 18y

9 x -6 = -54

So the simplified or equivalent expression is:

81x + 18y - 54

4 0
2 years ago
Solve Two Step Eqautions
VashaNatasha [74]
1. n=7
2. w= 7.75 
3. f= -15
4. y = 66
5. g=42
6. p= 2
4 0
3 years ago
The question is: find 55% of $4.80...how do I find the answer?
tresset_1 [31]
4.80 = 100%
   x   = 55%

Cross Multiply

100 * x = 55 * 4.80
100x = 264
x = <u>264</u>
      100
x = 2.64

Solution: $2.64
6 0
3 years ago
Read 2 more answers
Helppppp plzzzzz 10points
wel

I think it should be B because the depth of the water should be decreasing slowing at the same rate.


4 0
3 years ago
Read 2 more answers
If ◻SLED ~ ◻PARK which of the following statements are incorrect?
san4es73 [151]

Answer:

  ◻DELS ~ ◻KARP is incorrect

Step-by-step explanation:

All of the similarity statements have corresponding letters in the same order except ...

  ◻DELS ~ ◻KARP . . . . (incorrect)

_____

The correct version would be ...

  ◻DELS ~ ◻KRAP

3 0
3 years ago
Other questions:
  • a number divided by 43 has a quotient of 3 with 28 as the remainder find the number and show all your work question two when div
    13·1 answer
  • Can somebody help me I don’t know which one is the answer!!!
    6·1 answer
  • The measure of the supplement of an angle is 36 less than the measure of the angle. Find the measures of the angles.
    15·1 answer
  • Patel is solving 8x2 + 16x + 3 = 0. Which steps could he use to solve the quadratic equation? Check all that apply. 8(x2 + 2x +
    10·1 answer
  • You are interested in determining which of two brands of light bulbs, brand A and brand B, lasts longer under differing conditio
    13·2 answers
  • Greatest common factor of 117 and 19,110?​
    11·1 answer
  • ∠A is an acute angle in a right triangle.
    7·1 answer
  • Round to 1 SF<br> 0.00628
    12·1 answer
  • Need some help on this
    5·1 answer
  • URGENT Q: A bicycle company produces y bicycles at a cost represented by the polynomial y² + 10y + 100,000. The revenue for y bi
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!