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
Alisiya [41]
2 years ago
15

Please help!! law of sines and cosines related

Mathematics
1 answer:
pickupchik [31]2 years ago
4 0

Answer:

as below

Step-by-step explanation:

to find the height of the pole recall the relationship of sin cos and tan to the triangle with this helpful mnemonic   SOH CAH TOA

Sin = Opp / Hyp

Cos = Adj / Hyp

Tan = Opp / Adj

we will need to solve two triangles and subtract  them.

one is the 15° one of the slope of the road and the other is the 57° one that is the angle of the sun. sooooo,

lets solve the 15° one first.  We are told that the adj side is 75'

since we know the angle and the adj side and we want to find the Opp side let's use Tan b/c it has all of those in it :)  

Tan(15) = Opp / 75

75*Tan(15) = Opp   ( I'll put my calculator to work for this )

20.096 = Opp

that's the height of the road to the bottom of the flag pole along that flag pole axis into the ground  

next lets solve the 57°  triangle in the exact same way

Tan(57) =Opp / 75

75*Tan(57) = Opp

115.4898 = Opp

the tall triangle is the one that goes all the way into the ground,  the small one is the one that is under the ground

so subtract the small one from the big one to find the height of the flag pole above the ground

115.4898-20.096 = 95.3938

so the flag pole is about 95.4 feet tall

:o that's pretty tall :

You might be interested in
What’s the answer to number 1 ? Show how you solved please !!!!
Elodia [21]
Dan had 52
shown work: 29 x 2=58 58-6=52
5 0
3 years ago
3 ounces of cinnamon cost $2.40. There are 16 ounces in 1 pound how much the cinnamon cost per pound
faltersainse [42]
16 ounces in a pound
2.40 for 3 ounces
16 divided by 3 = 5.333
2.40 * 5.333 =
12.8
Approx $12.80 for 1 pound of cinnamon
3 0
2 years ago
Arithmetic of Functions problem.
lidiya [134]

Answer:

(f o g)(4) = 45

Step-by-step explanation:

f(x)=4x+1

g(x)=x²-5

(f o g)(4)=?

(f o g)(4) = f(g(4))


Calculating g(4):

x=4→g(4)=4²-5

g(4)=16-5

g(4)=11


Replacing g(4)=11

(f o g)(4) = f(g(4))

(f o g)(4) = f(11)


Calculating f(11)

x=11→f(11)=4(11)+1

f(11)=44+1

f(11)=45


Replacing f(11)=45:

(f o g)(4) = f(11)

(f o g)(4) = 45

4 0
3 years ago
Read 2 more answers
16q– 81 = 0<br> Answer for me plizzz
lisov135 [29]
The answer is q = 5.0625
7 0
2 years ago
Read 2 more answers
In exercises 21 and 22, find the indicated angle measure. (See photo)
Fudgin [204]

Answer:

42°, 101°

Step-by-step explanation:

These answers come from the angle subtraction postulate.

5 0
1 year ago
Read 2 more answers
Other questions:
  • Jorge is asked to build a box in the shape of a rectangular prism. Its height will be 2 cm more than its width. The sum of the l
    5·1 answer
  • What is the name of a parallelogram whose sides are equal in length but whose angles are not necessarily right angles
    9·1 answer
  • Help me please I don’t know what the answer is
    15·1 answer
  • The sum of a number and 19 is at least 8.2.
    8·2 answers
  • Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=10
    11·1 answer
  • Please Help I dont Know what to do with this question!!!!
    15·2 answers
  • I did a little bit but i need help
    11·1 answer
  • The roof of a house is in the shape of a square pyramid and its net is shown below. The length of each side of the square is 30
    7·1 answer
  • Ron has 22 coins with a total value of $ 1.85. The coins are nickels (5 cents) and dimes (10 cents). How many of each coin does
    14·2 answers
  • A regular hexagon is rotated 360° about its center. How many times does the image of the hexagon coincide with the pre image dur
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!