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
Ronch [10]
3 years ago
14

The lighthouse keeper that is at the top of a lighthouse that

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
7 0

Step-by-step explanation:

Let θ be the angle of depression i.e the angle between the horizontal and the observer's line of sight.

tanθ= (Height of the light house)/(Horizontal distance of ship from the base of light house)

∴tanθ=88/1532=0.0574

∴θ=tan−1(0.0574)=3.290(2dp)

You might be interested in
4. Which expression is equivalent to sin(50)º?
jasenka [17]

Answer:

cos(400)

Step-by-step explanation:

Useful things:

Cofunction identity: sin(x)=cos(90-x)

Sine and cosine have period of 360 degrees.

So sin(50)=cos(40) by cofunction identity.

Since cosine has period of 360 degrees then cos(40)=cos(360+40).

That simplifies to cos(400).

3 0
3 years ago
HELP ME!!! 25 POINTS!!
riadik2000 [5.3K]

Answer:

The total distance walked by Paulo is 3750 feet.

Step-by-step explanation:

Here the four points are<em> (-2,1) (-2,-7) (5,-7) (5,1)</em>

Moving from stop A to B, only the y coordinate changes,

the change is ,

=1-(-7) = 1+7 = 8 units

Moving from stop B to C, only the x coordinate changes,

the change is ,

=5-(-2) = 5+2 = 7 units

Moving from stop C to D, only the y coordinate changes,

the change is

=1-(-7) = 1+7 = 8 units

Moving from stop D to A, only the x coordinate changes,

the change is

=5-(-2) = 5+2 = 7 units

Thus, the total distance traveled is 8+7+8+7 = 30 units

It is given that <em>1 unit = 125 feet</em>

Thus, the total distance traveled is = (125)(30) = 3750 feet

The total distance walked by Paulo is 3750 feet.

3 0
4 years ago
I dont need answers but does someone mind explaining what i have to do here? im stuck, thanks!​
klio [65]

Answer:

for this problem you would have to find the coordients on the graph and then once you find all the coordients you would attach the lines together which should be a triangle.

Step-by-step explanation:

If you need answer's I can pin a picture

5 0
3 years ago
Read 2 more answers
X2 + y2 - 14x + 10y + 65 = 0 <br><br> will lie ENTIRELY in Quadrant
Afina-wow [57]
Rearranging to standard form 
= (x - 7)^2 + (y + 5)^2 = -65 + 49 + 25
 (x-7)^2 + (y+5)^2 = 9 
so the centre is at (7,-5) and the radius is 3

so the circle will be entirely in Quadrant 4.
5 0
3 years ago
please answer my question correctly not for points because i will be deleting wrong answers. im not saying this to be rude.
almond37 [142]
He will be paying $11,840
8 0
3 years ago
Other questions:
  • How do change slope-intercept form to standard form
    11·2 answers
  • Complete the ordered pair so it a solution of 2x-5y=13
    15·1 answer
  • A rectangular piece of metal is 20 in longer than it is wide. Squares with sides 4 in long are cut from the four corners and the
    6·1 answer
  • If at least one of these two numbers is divisible by 6, then the product of these two numbers is divisible by 6. Neither of thes
    13·1 answer
  • 372 picoseconds equal to how many femoseconds
    7·1 answer
  • Factor completely 3y^2+7y+4
    13·2 answers
  • PLEASE HELP SO I CAN GO EAT LUNCH!!
    14·1 answer
  • Help someone that’s good at math need your help 15 points !
    14·2 answers
  • 15^8 divided by 7x =
    5·2 answers
  • Find the greatest common factor of 34 and 36.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!