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
Ilia_Sergeevich [38]
3 years ago
15

Two men, 400 feet apart, observe a balloon between them it is the same vertical plane as they are. The respective angles of elev

aation of the balloon are observed by the men to be 75 degrees 20' and 49 degrees30'. Find x rounded to the nearest whole number.
Mathematics
1 answer:
slava [35]3 years ago
4 0
The answer is 471 feet.

If A = man to left of balloon 
<span>B = balloon </span>
<span>C = man to right of balloon </span>

<span>∠BAC = 75°20' </span>
<span>∠BCA = 49°30' </span>
<span>∠ABC = 180 - 75°20' - 49°30' = 55°10' </span>
<span>AB = 400 ft </span>

<span>Now we have to find the value of x, which is the side opposite to angle of 75°20' </span>

<span>Using Law of Sines: </span>
<span>x/sin(75°20') = 400/sin(55°10') </span>
<span>x = 400 * sin(75°20') / sin(55°10') </span>
<span>x = 471.44 </span>
<span>x = 471 ft </span>
You might be interested in
Really need help please please help
Assoli18 [71]

Answer:

  1. 1000,000
  2. 2.0
  3. 77,255,0,0.84831,0,0,0
  4. 45,24 27,14 27,34

Step-by-step explanation:

Thanks Okay

8 0
2 years ago
Use the table shown in the image! 1. Which equation expresses “y” in terms of “x”? A. y=17x B. y=25x C. x=51y D. x=85y 2. What i
levacccp [35]

Answer:  1. A. y=17x

2.  $59.50

Step-by-step explanation:

1. In the table , it can be seen that as x increases y increases with the proportionality constant k = \dfrac{y}{x}=\dfrac{51}{3}=\dfrac{85}{5}=\dfrac{119}{7}=17,.

Equation of direct variation between  x and y : y=kx

Put k= 17 , we get

y=17x , which is the required equation.

So correct option is "A".

2. To find : The charge for renting a machine for 3.5 hours.

Put x= 3.5 in above equation , we get

y=17(3.5)=59.5

Hence, the  charge for renting a machine for 3.5 hours is $59.50.

So correct option is "B".

3 0
2 years ago
Read 2 more answers
What is the solution to the equation 2/3x+1=1/6x-7?
Alborosie
As it is, in accordance with the priorities of the operators (or the PEMDAS rule) the equation without parentheses mean
<span>(2/3)x+1=(1/6)x-7
I do not suppose you mean the above, since the solution is relatively trivial.

I suppose you actually mean
</span><span>2/(3x+1)=1/(6x-7)
in which case you would cross-multiply:
2(6x-7)=(3x-1)
and expand/distribute
12x-14=3x-1
isolate x and solve
12x-3x=-1+14
9x=13
x=13/9
If you mean the first form of equation without parentheses, my apologies.</span>
5 0
3 years ago
Ayudaaaaaaaaaaaaaaaaaa aaa aaa aaa Doy corona
zvonat [6]

Answer:

The IQR describes the middle 50% of values when ordered from lowest to highest. To find the interquartile range (IQR), ​first find the median (middle value) of the lower and upper half of the data. These values are quartile 1 (Q1) and quartile 3 (Q3). The IQR is the difference between Q3 and Q1.

Step-by-step explanation:

6 0
2 years ago
Can somebody give me the answer to this question please
Alex

the answer is either A or B, probably C, maybe D. I know it's one of those

6 0
2 years ago
Read 2 more answers
Other questions:
  • What is 61 ones times1/10
    7·2 answers
  • Which of the following represents the zeros of f(x) = x3 − 12x2 + 47x − 60?
    10·2 answers
  • Let f(x) = 8x3 − 22x2 − 4 and g(x) = 4x − 3. Find f of x over g of x.
    12·2 answers
  • Please help me with all thank you
    6·1 answer
  • A random sample of college basketball players had an average height of 67.45 inches. Based on this sample, (64.9, 69.2) found to
    13·1 answer
  • Which of the following is the most important consideration when planning your budget?
    9·2 answers
  • You are taking a multiple choice quiz that consists of five questions. Each question has four possible answers, only onw of whic
    14·2 answers
  • What is 2/5 divided b y 3/4
    11·2 answers
  • Which expression has odd numbers for all of its coefficients?
    9·2 answers
  • Uhhhhhh please help.........​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!