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
How do you do these questions?
algol [13]

Answer:

-x¹⁴ / 5040

-½ < x < ½

Step-by-step explanation:

f(x) = e^(-x²)

The Taylor series for eˣ centered at 0 is:

eˣ = ∑ (1/n!) xⁿ

Substitute -x²:

e^(-x²) = ∑ (1/n!) (-x²)ⁿ

e^(-x²) = ∑ (1/n!) (-1)ⁿ x²ⁿ

The 14th degree term occurs at n=7.

(1/7!) (-1)⁷ x¹⁴

-x¹⁴ / 5040

ln(1 + x) = ∑ₙ₌₁°° (-1)ⁿ⁺¹ xⁿ / n

If we substitute 4x²:

ln(1 + 4x²) = ∑ₙ₌₁°° (-1)ⁿ⁺¹ (4x²)ⁿ / n

Using ratio test:

lim(n→∞)│aₙ₊₁ / aₙ│< 1

lim(n→∞)│[(-1)ⁿ⁺² (4x²)ⁿ⁺¹ / (n+1)] / [(-1)ⁿ⁺¹ (4x²)ⁿ / n]│< 1

lim(n→∞)│-1 (4x²) n / (n+1)│< 1

4x² < 1

x² < ¼

-½ < x < ½

7 0
3 years ago
Please help me!! I will give brainliest.
Flura [38]

Answer:

  • 2/3

Step-by-step Solution:

Simply change the denominators such that both denominators are the same. Then, add the fractions to get your result.

  • 1/2 + 1/6
  • => 3 x 1/2 x 3 + 1/6
  • => 3/6 + 1/6
  • => 4/6 = 2/3

Hence, the solution is 2/3.

6 0
2 years ago
Read 2 more answers
GM EVERYONE IT'S ALMOST FRIDAYYYYY!!
tester [92]

Answer

Good morning, I loveeeee FRIDAYSSSSS!!!!

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Alfonso went to famous Sam’s appliance store
bonufazy [111]
This is a true statement, or false depending on whether Alfonso actually did or not. There's no proof.
6 0
3 years ago
Question 4 (0.5 points)
photoshop1234 [79]
It has to be b because none of the others are correct.
3 0
3 years ago
Other questions:
  • What is the reason for each step in the solution of the equation? -6= -2(x+12). Drag and drop the reasons into the boxes to corr
    6·1 answer
  • Evaluate 3h(2) + 2k(3) =
    11·2 answers
  • Solve by factoring x3 + 8x2 + 5x − 14 = 0.
    12·2 answers
  • Help me on question 3
    13·1 answer
  • If the quadratic formula is used to solve 2x 2 - 3x - 1 = 0, what are the solutions?
    6·2 answers
  • Please everyone help me!
    10·2 answers
  • Image attached down bellow
    11·2 answers
  • an ice cream factory makes 330 quarts of Ice cream in 2 hours how many quarts could be made in 36 hours what was the rate per da
    7·2 answers
  • A digital music player has a retail price of 85$ the percent of markup is 140% what is the final price after the markup? (Show w
    10·1 answer
  • The cost of a machine is supposed to
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!