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
LenKa [72]
2 years ago
13

A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B an

d C, as shown below:
A source of laser light is at point A on the ground between two parallel walls. The walls are perpendicular to the ground. AB is a ray of light which strikes the wall on the left at point B. The length of AB is 40m. AC is a ray of light which strikes the wall on the right at point C which is 80 m above the ground. The ray AB makes an angle of 60 degrees with the ground. The ray AC makes an angle of 45 degrees with the ground.

What is the distance between the walls?
Mathematics
1 answer:
snow_tiger [21]2 years ago
3 0

The distance between the walls is: 76.56854249

Cos(60)=A/40

Cos(45)=A/80

20+56.56854249

You might be interested in
Explain the steps needed to determine the value of the expression below. 3(y-4)-7y+3/4
Ahat [919]

Answer:

3(y-4)-7y+3/4=3y-(3)(4)-7y+3/4=-4y-12/1+3/4=-4y+(-12×4+3)/4=-4y-45/3

3 0
3 years ago
Can someone tell me the answer to this question
pshichka [43]
A can be the correct option
hoping it is right
7 0
3 years ago
Find the slope between the points (-8,-4) and (0,0).
Vadim26 [7]

Answer:

1/2

Step-by-step explanation:

slope = \frac{y_{2}-y_{1} }{x_{2}-x_{1}}

(0-(-4))/(0-(-8)) = 1/2

7 0
2 years ago
How many times larger is the value 0.75 than the value 0.0075?
azamat
0.75 is greater the 0.0075
4 0
3 years ago
Read 2 more answers
Rick cuts a 12-foot-long ribbon into 2 pieces. One piece is 3.5 feet longer than the other. What is the length of each piece?
GREYUIT [131]

Its impossible there is no way to solve it because x+3.5= y no number can make 12 if one number is 3.5 ft longer than the other Ignore this i dont feel like erasing this part.

144 in. 42 in. greater than the other 42 + x = y Nvm if you convert the numbers too in. the numbers are 93 + 51 = 144 and if you convert it back it would be

7.75 + 4.25 = 12

3 0
2 years ago
Other questions:
  • PLEASE HELP
    14·1 answer
  • I need to know the surface area. The formula is Area Of Base + Area of lateral faces
    7·1 answer
  • 5(2x-3)=24<br><br> Help me in this pleasee
    14·2 answers
  • What is -3-(-8)-(-2)
    8·2 answers
  • Which of the following numbers can be expressed as repeating decimals?
    12·1 answer
  • Please help me with this make sure to do everything it’s asking because I have no clue how to do this please look at the image t
    15·1 answer
  • HELP PLZZZS!!!!!!! EASY 10 points *easy*
    14·2 answers
  • Pls help me. Show proof on why it’s that answer.
    6·1 answer
  • Ronnie charges his customers a flat fee of $25 to fix a computer. Then, he charges $30 for each hour he spends working on the co
    10·2 answers
  • Are the graphs of y=3x-5 and 9x+3y=1 parallel, perpendicular or neither?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!