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
ELEN [110]
3 years ago
10

Three locations are marked next to a river. Points B and C are on the same side of the river, and point A is on the other side o

f the river. To find the distance AB across a river, a distance BC of 241 meters is laid off on one side of the river. It is found that the angle at point B is 108.6° and the angle at point C is 14.9°. Find the distance AB (across the river). Round to the nearest meter.
Mathematics
1 answer:
nlexa [21]3 years ago
5 0

Answer:

74.31353

=74 m

Step-by-step explanation:

given that three  locations are marked next to a river. Points B and C are on the same side of the river, and point A is on the other side of the river. To find the distance AB across a river, a distance BC of 241 meters is laid off on one side of the river. It is found that the angle at point B is 108.6° and the angle at point C is 14.9°.

we have information about triangle ABC as side BC =241, Angle B = 108.6 and angle C = 14.9 degrees.

Hence this is an obtuse scalene triangle.

Angle ∠A = 56.5° (III angle)

Using sine formula we get

\frac{AB}{sin 14.6} =\frac{BC}{sin 56.5} \\AB = 74.31353

So distance AB is 74 metres.

You might be interested in
A photographer made a 5-inch by 8-inch print of a photo. He then made a 10-inch by 16-inch print of the same photo. Which scale
GREYUIT [131]

Answer:

A.

Step-by-step explanation:

5x8 enlarged to 10x16

10 is 5x2 and 16 is 8x2

7 0
3 years ago
What is the hcf of 12 45 and 75​
Butoxors [25]

Answer:

3

HCF of 12, 45 and 75 by Prime Factorization

As visible, 12, 45 and 75 have only one common prime factor i.e. 3. Hence, the HCF of 12, 45 and 75 is 3.

Step-by-step explanation:

4 0
3 years ago
Which expression is equivalent to 8/6?<br> •/14<br> •/48<br> •/96<br> •/384
mihalych1998 [28]

Answer:

./48

Step-by-step explanation:

5 0
2 years ago
The drama club sold $779 worth of tickets to the school play. Student tickets cost $3 a piece and tickets for everyone else cost
svetlana [45]

Answer:

<em>The equation will be:  3s+5t=779</em>

Step-by-step explanation:

The number of student tickets that were sold =s

and the number of other tickets that were sold =t

Student tickets cost $3 a piece and tickets for everyone else cost $5 each.

So, <u>the total cost of</u>  s  <u>student tickets</u> =\$3s and <u>the total cost of</u>  t  <u>other tickets</u> =\$5t

Given that, the drama club sold <u>total $779 worth of tickets</u>.

So, the equation will be:  3s+5t=779

3 0
3 years ago
Read 2 more answers
The cost of 40 candy bars is
Anon25 [30]
C) $20
40 divided by 30 is 1.3
1.3 times 15 is 30
8 0
3 years ago
Other questions:
  • What is the volume of a cylinder with base radius 2
    11·1 answer
  • The smiths spent 2,000 on clothes in a particular year if they increase the amount they spend on clothes by 10% each year the sm
    10·1 answer
  • Activity 4: Factor Then solve
    6·1 answer
  • Which of these expressions is equivalent to 3(5x − 2)?
    15·2 answers
  • I need help with these two
    9·1 answer
  • What is 15 3/5 times 6
    6·2 answers
  • Express answer in exact form. Show all work for full credit.
    13·2 answers
  • Helllppppp Asapppp.
    10·1 answer
  • What is the value of cos 120 degree
    5·1 answer
  • A = p + prt solve for t
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!