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
Aleks04 [339]
3 years ago
7

a plane flying at a certian altitude is observed from two points that are 3 miles apart. the Angles of elevation made by the two

points are 55deg and 72deg​
Mathematics
1 answer:
aev [14]3 years ago
7 0
The altitude of the plane is 8 miles
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
In the right triangle ABC
tan(72°)=h/x
h=xtan(72°) -----> equation A
In the right triangle ABD
tan(55°)=h/(x+3)
h=(x+3)tan(55°) -----> equation B
equate equation A and equation B and solve for x
xtan(72°)=(x+3)tan(55°)
xtan(72°)-xtan(55°)=3tan(55°)
x[tan(72°)-tan(55°)]=3tan(55°)
x=3tan(55°)/[tan(72°)-tan(55°)]
Find the value of h
h=xtan(72°)
h=[3tan(55°)*tan(72°)]/[tan(72°)-tan(55°)]
h=8 miles
You might be interested in
Z2 - (y = 7, and z=10​
Lyrx [107]

Answer:

Step-by-step explanation:

7 0
3 years ago
TIME LIMIT PLEASE HELP ASAP
SashulF [63]

Answer:

y = 8, x = 4

Step-by-step explanation:

idk whether y is hardcover or paperback of vice versa and i can't explain if there's a timelimit it'll take too long

4 0
3 years ago
? Help
svlad2 [7]

Answer:

9

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
2b.) What transformation of f(x) does y correspond to?
kkurt [141]

Answer:

The transformation is " a horizontal translation 4 units to the right " ⇒ (d)

Step-by-step explanation:

Let us revise the translation of a function

  • If the function f(x) translated horizontally to the right by h units, then its image is g(x) = f(x - h)  
  • If the function f(x) translated horizontally to the left by h units, then its image is g(x) = f(x + h)  
  • If the function f(x) translated vertically up by k units, then its image is g(x) = f(x) + k  
  • If the function f(x) translated vertically down by k units, then its image is g(x) = f(x) - k

Let us look at the graph and choose some points on the f(x) and find their images on y

∵ Point  (1, 2) lies on f(x)

∵ Point (5, 2) lies on y

∵ Point  (3, 8) lies on f(x)

∵ Point (7, 8) lies on y

→ There is no change in the y-coordinates of the points, the change

  only in the x-coordinates

∴ The translation is horizontally

∵  5 - 1 = 4 units ⇒ positive value means to right

∴ f(x) is translated 4 units to the right

∴ The answer is " a horizontal translation 4 units to the right " (d)

7 0
3 years ago
Merlyn’s weight went down from 125 pounds to 110 pounds after dieting. What was her percent weight loss? a. 10% b. 12% c. 15% d.
andre [41]

\frac{(new) - (original)}{original} = \frac{110 - 125}{125} = \frac{-15}{125} = -0.12 The negative means it is a decrease.

0.12 x 100 = 12%  

Her weight decreased 12%

Answer: B

8 0
3 years ago
Read 2 more answers
Other questions:
  • <img src="https://tex.z-dn.net/?f=%28x%20%2B%20k%29%20%7B%7D%5E%7B2%7D%20%20%3D%20%20%7Bx%7D%5E%7B2%7D%20%20%2B%201x%20%2B%20%20
    5·1 answer
  • I been help answering this question and a few more
    14·1 answer
  • Is 23.187 an irrational number
    5·2 answers
  • 2(5c+ 2) - 2c = 3(2c + 3) + 7
    9·2 answers
  • Let f(x) = 3x + 6 and g(x) = 2x^2. Perform the function operation and then find the domain of the result.
    11·1 answer
  • Graph the line containing the point P and having slope m.<br><br> P=(1,8); m=0
    5·1 answer
  • Write an explicit furmula for the question below <br> 40 points!!!!!!!!!!!!!
    7·1 answer
  • You work delivering food for a local farmer. You sell eggs from the farm at a price of 3 for $2.00, 6 for $3.50, 12 for $6.00, a
    8·1 answer
  • Write the line in slope-intercept form given the slope of 1/3, through the point (-6,9)
    14·1 answer
  • Add these fractions 5/7 + 2/7 is it to 3 or
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!