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
Snowcat [4.5K]
3 years ago
5

Charlie is late for the hot-air balloon rally. He stops his car 65 meters from a hot-air balloon already in flight. While Charli

e watches the balloon ascend, he tilts his eyes up from 28º until he is watching at an angle of elevation of 66º. Find the vertical distance to the nearest tenth of a meter that the balloon ascended while Charlie watched.
Mathematics
1 answer:
aalyn [17]3 years ago
6 0

Answer: 111.4m

Explanation:

1) Trigonometric ratios

You only need to use tangent ratio.

tangent ratio = opposite-leg / adjacent-leg = balloon height / horizontal distance

2) First, find the height of the ballon when he is watching at an angle of elevation of 28°

tangent ratio = opposite-leg / adjacent-leg = balloon height / horizontal distance

tan(28°) = balloon height/65m ⇒balloon height = tan(28°)×65m

balloon height = 34.56m

3) Second, find the height of the balloon,when he is watching at an angle of elevation of 66°

tan(66°) = height of the balloon / 65m ⇒ height of the balloon = tan(66°)×65m

height of the balloon = 145.99m

4) Vertical distance the balloon ascended while Charlie watched.

Subtract the final initial height from the final height:

145.99m - 34.56m = 111.43m

4) Round to the nearest tenth: 111.4 m

You might be interested in
A single-server waiting line system has an arrival pattern characterized by a Poisson distribution with 3 customers per hour. Th
sweet-ann [11.9K]

Answer:

18 minutes

Step-by-step explanation:

Given that:

The arrival time = 3 customers / hour

The avg. service rate (s) = 12 minutes per customer

To hour, we have:

s = \dfrac{60}{12}

s = 5 customers/ hour

Thus, the required average time for a customer needs to wait in line is:

= \dfrac{3}{5}\times (5-3) hours \\ \\ = \dfrac{3}{5}\times 2 \\ \\ = \dfrac{3}{10} \ hours

To minutes;

= 3 \times \dfrac{60}{10} \ minutes

= 18 minutes

3 0
3 years ago
11 The wild tiger population in India increased from 1706 in the year 2010 to
IrinaK [193]
The percentage change is 20%
3 0
3 years ago
Given the triangle below, which of the following equations correctly represents the relationship between a, b, and c?
maxonik [38]

Answer:

C. c^2=a^2+b^2-2abcos(90°)

Step-by-step explanation:

This is the law of cosine.

7 0
2 years ago
Read 2 more answers
John works a fortnightly wage of $750.00. If his basic week is 40 hours. what is his: Weekly wage basic rate and basic fortnight
Vladimir [108]

Answer:

Basic wage rate = $9.375 per hour

Step-by-step explanation:

Given :

Fortnight wage = $750

Basic week, hours worked per week = 40 hours

Weekly basic wage rate :

Fortnight = 2 weeks

Hence, weekly wage = fortnight wage / 2 = 750 /2 = $375

Weekly basic wage rate = $375 / Number of hours worked per week = $375 / 40 = $9.375 per hour

4 0
3 years ago
Solve for m. m=-(4+m)+2
pishuonlain [190]

Answer:

m= -1

Step-by-step explanation:

Order summands

2

Apply negation to the value inside parentheses

3

Add the numbers

4

Add 

mm

 to both sides of the equation

5

Simplify

3 0
3 years ago
Read 2 more answers
Other questions:
  • Does 1/2 + 1/8 equal to 3/4
    14·2 answers
  • A triangle in which all of the angles are smaller than 90 degrees is called what triangle ?
    7·1 answer
  • Ana participated in a charity walk. She raised $0.25 for each 1/2 mile that she walked.The first day Ana walked 11 miles.The sec
    15·2 answers
  • What number goes in the blank space? 669+__=729
    9·2 answers
  • Identify the constant of proportionality in the equation.
    15·2 answers
  • Which problem solving strategy would be best to solve this problem? Avelina earned half as much money as Gus. If Gus earned $125
    15·1 answer
  • Please help will give brainlist!​
    9·1 answer
  • What is 10 x 5 + 50 I need an lot of help im mest up in the brain.
    10·2 answers
  • What is the hcm of 18 and 45
    12·1 answer
  • X - 3y - 3 = 0<br><br> 3x - 9y - 2 = 0
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!