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
Anvisha [2.4K]
3 years ago
7

A ship captain looks up at the top of a lighthouse at a 7 degree angle of elevation and calculates that he is 1221 feet from its

base. How tall is
the lighthouse, rounded to two decimal places?

123.01 feet
134.78 feet
149.92 feet
148.80 feet
Mathematics
1 answer:
Crank3 years ago
6 0
148.80 feet !!!!!!!!!!!
You might be interested in
On a fishing trip, you catch two fish . The weight of the first fish is shown (1.2lb). The second fish weighs at least 0.5 pound
Norma-Jean [14]
The possible weight of the second fish is 1.2 +0.5=W
4 0
3 years ago
Read 2 more answers
I need help with this. Thanks <br><br><br> I need to find the degree
scoundrel [369]

Answer:

  119.05°

Step-by-step explanation:

In general, the angle is given by ...

  θ = arctan(y/x)

Here, that becomes ...

  θ = arctan(9/-5) ≈ 119.05°

_____

<em>Comment on using a calculator</em>

If you use the ATAN2( ) function of a graphing calculator or spreadsheet, it will give you the angle in the proper quadrant. If you use the arctangent function (tan⁻¹) of a typical scientific calculator, it will give you a 4th-quadrant angle when the ratio is negative. You must recognize that the desired 2nd-quadrant angle is 180° more than that.

__

It may help you to consider looking at the "reference angle." In this geometry, it is the angle between the vector v and the -x axis. The coordinates tell you the lengths of the sides of the triangle vector v forms with the -x axis and a vertical line from that axis to the tip of the vector. Then the trig ratio you're interested in is ...

  Tan = Opposite/Adjacent = |y|/|x|

This is the tangent of the reference angle, which will be ...

  θ = arctan(|y| / |x|) = arctan(9/5) ≈ 60.95°

You can see from your diagram that the angle CCW from the +x axis will be the supplement of this value, 180° -60.95° = 119.05°.

3 0
3 years ago
Avery brought 1 gallons of sports drink for the track team to practice. How many pints is that amount?
Shkiper50 [21]
The amount will be 8 pints
3 0
3 years ago
You and two of your friends are in a group of 10 people. the group is randomly split up into two groups of 5 people each. determ
MrRissso [65]

50/50 im pretty sure

7 0
3 years ago
Uh i need help now pls ty
stepladder [879]
<h2><u>Hi Luv!!!!!!!</u></h2><h3><u>Answer:</u></h3><h3><u>the answer is 2 and 3/4</u></h3><h3><u>Step-by-step explanation:</u></h3><h3><u>It keeps going up 2/4th's so that would be your answer. </u></h3><h3><u>brainliest? </u></h3><h3><u>have a good day!</u></h3>
7 0
2 years ago
Read 2 more answers
Other questions:
  • PLZZZ HELP ME WITH #3
    6·2 answers
  • If there is a 10% chance of sun tomorrow and a 20% chance of wind and no sun, what is the probability that it is windy, given th
    6·2 answers
  • Kevin cuts 3/4 off of the length of a log. Kenneth cuts 1/8 off of what is left. How much of the original log remains?
    14·1 answer
  • What is the solution of the system? Use either the substitution method or the elimination method. 4x + 2y = 104x + 2y = 10 x − y
    5·1 answer
  • Which is a y-intercept of the continuous function in the table?
    7·2 answers
  • When finding scale factor do you multiply?
    14·1 answer
  • The perimeter of a rectangle is 48 m. The area of the rectangle is 128 square meters. Find the dimensions of the rectangle.
    13·1 answer
  • Find the value of x.
    5·2 answers
  • The volume of a sphere is 11,488.21 .To the nearest ​yard, what is the radius of the​ sphere? Use 3.14 for
    11·1 answer
  • 9. Let f be a continuous function such that f(3) = 4 and f(5)=2. Let h(x)= f(x) + 2x. Explain why
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!