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
alina1380 [7]
3 years ago
10

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 degre

e to 36 degree calculate correct to three significant figure the height of the pole
Mathematics
1 answer:
Mama L [17]3 years ago
4 0

Step-by-step explanation:

(A) Let a triangle be formed with height of pole h, length of base b and angle of elevation 58°. (Due to lack of a figure).

Tan 58° = h / b = 1.6

(B) Let another triangle be formed with height of pole h, length of base (b + 90) and angle of elevation 36°. (Due to lack of a figure).

Tan 36° = h / (b + 90) = 0.72

(C) <u>Simplifying the two equations</u> :

1.6b = 0.72b + 64.8

b = 64.8 / 0.88 = 73.6 m

h (height of pole) = 1.6 * 73.6 = 117.76 m

You might be interested in
Which set of numbers could be the length of the sides of a triangle?
san4es73 [151]

3. {6,9,15)

for these u have use Pythagoras theorem

4 0
2 years ago
In a previous section we looked at mixing problems in which the volume of fluid remained constant and saw that such problems giv
Juli2301 [7.4K]

Answer:

Detailed solution is given below:

3 0
3 years ago
Find the values of x and y.
Papessa [141]

Step-by-step explanation:

x=20

y=100

solution in image

6 0
3 years ago
Which expressions show a way to solve this problem? marsha had 54 beads. she kept 14 of the beads and shared the rest equally am
leonid [27]
54 - 14 = 40
40/5 = 8
Each friend recieved 8 beads
8 0
3 years ago
A square garden has 49 square feet. So the perimeter of the garden must be----feet.
lianna [129]

The side length of a square is the square root of the area:

Side length = √49 = 7 feet.

The perimeter of a square is 4s = 4*7 = 28 feet.

7 0
2 years ago
Read 2 more answers
Other questions:
  • 3 if the probability of randomly drawing a number ending in 3 is 37/156, what I the probability of not drawing a number ending i
    12·1 answer
  • What the word form 485,830
    15·2 answers
  • Over the last three evenings, Rita received a total of 91 phone calls at the call center. The third evening, she received 2 time
    7·1 answer
  • If the perimeter changes does the area increase
    11·2 answers
  • a soccer ball is kicked into the air, and it’s path can be modeled with a quadratic function. the table shows the time, t, in se
    12·1 answer
  • Please write 3% as a fraction :D
    13·2 answers
  • Roger is buying a new pair of shoes for 25% off. if the original price of the shoes was $90.00, how much money is roger saving o
    14·1 answer
  •  ......... you can give me solving
    7·1 answer
  • Please answer in detail
    9·1 answer
  • Amir drove from Jerusalem to the lowest place on Earth, the Dead Sea. His altitude relative to sea level (in meters) as a functi
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!