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
Papessa [141]
2 years ago
9

Two planes are the same altitude. From the airport , one plane is 50 km away in the direction of N°60 E and another is 80 km awa

y in the direction of S50° E .How far apart are the two planes
Mathematics
1 answer:
djverab [1.8K]2 years ago
6 0

9514 1404 393

Answer:

  78.5 km

Step-by-step explanation:

Measured at the airport, the angle between the two planes is ...

  180° -60° -50° = 70°

The law of cosines tells us the distance between the planes is ...

  d = √(50² +80² -2·50·80·cos(70°)) ≈ √6163.84 ≈ 78.5 . . . km

The planes are about 78.5 km apart.

You might be interested in
Water flows at a rate of 8000 cubic inches per minute into a cylindrical tank. The tank has a diameter of 128 inches and a heigh
beks73 [17]

Answer:

The height of the water = 6.2 in. to the nearest tenth

Step-by-step explanation:

∵ The rate of flows of water into the tank = 8000 in.³/min.

∴ The volume of the water in the tank after 10 min. = 8000 × 10 = 80000 in.³

∵ The water take the shape of the tank

∴ The height of the water = volume of water ÷ Area of the base of the tank

∵ The tank is cylinder with diameter 128 in. and height 72 in.

∴ The area of the base of the tank = π(128/2)²

∴ The height of the water = \frac{80000}{\pi(64)^{2}}=6.2169899

∴ The height of the water = 6.2 in. to the nearest tenth

 

5 0
3 years ago
What is y+4=9 what is y?
amid [387]

Answer:

y = 5

Step-by-step explanation:

Subtract the 4 from 9

5 0
3 years ago
Read 2 more answers
271403 rounded to the nearest ten thousand
ella [17]

Answer:

271,403 is rounded to 270,000 because the 1403 before it is less than 5000, 4 and below drop it down, 5 or more bump it up.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the median and mode
viktelen [127]
Median is the middle number

60, 60, 65, 70, 70, 85, 90

70 is your median

mode is the number(s) that show up the most
60 and 70 is your mode, since they show up twice (one more than the others)

Range is largest number minus the smallest
90 - 60 = 30, 30 is your range

Mean is all the numbers added together divided by the number of numbers there are 
60 + 90 + 65 + 70 + 70 + 85 + 60 = 500
500/7 = 71.42
Mean = 71.42

hope this helps
5 0
3 years ago
Question #3<br> True or false?
IrinaK [193]

Answer:

true

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • How many prime numbers are they between 21 and 35
    7·1 answer
  • When you graduate college at the age of 20, you want to start saving up for retirement. If your investment pays a fixed APR of 9
    12·2 answers
  • Convert 315 to radians. express the answer as a decimal rounded to the nearest hundredth​
    15·1 answer
  • The minute hand on an analog clock is 8 inches long. how far does the tip of the minute hand travel in 16 minutes
    9·1 answer
  • Find the volume of the sphere. Round your answer to the nearest tenth.
    9·1 answer
  • 16 km<br> d) radius =<br> diameter =
    12·1 answer
  • At a garage sale, Petra priced her scooter for $15.50. She ended up selling it for $10.75. Find the percent of decrease in the p
    11·2 answers
  • Help me pls plz please teachers math simple math lol ok smart wow cool points brainly tiktok
    12·1 answer
  • No termino de entender esta parte de la tarea me pueden ayudar porfabor
    12·1 answer
  • your friend says the greater common factor of 15 and 30 is 5 is your friend cprrect explain ur reasoning
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!