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
Yuki888 [10]
3 years ago
11

Lyra and Donna are testing the two-way radios they built for their high school science project. Lyra goes to the top of a buildi

ng that is 22 meters high with one of the radios and stands directly above the building’s entrance. Donna walks out of the entrance, perpendicular to the building, with the other radio. If Donna is more than 50 meters from the entrance, the connection between the radios breaks. What is the range of communication for the two radios to the nearest meter?
Mathematics
2 answers:
scZoUnD [109]3 years ago
8 0
Using <span>Pythagorean theorem: c^2 = a^2 + b^2, and if a = 22 and b = 50
c^2=484+2500
c=sqrt 2984
c=55 meters</span>
butalik [34]3 years ago
3 0

Answer:

55 meters

Step-by-step explanation:

A right triangle is formed, where one leg is the height of the building (let's call it x), the other leg is the distance between Donna and the entrance (let's call it y) and the hypotenuse is the distance between the two girls (let's call it z). From Pythagorean theorem:

z² = x² + y²

z = √(x² + y²)

Replacing with x = 22 m and y = 50 m we get the range of communication for the two radios.

z = √(22² + 50²)

z = 55 m

You might be interested in
110,411 in expanded form
Neporo4naja [7]
One hundred and ten thousand , four hundred and eleven

11000 + 400 +11
5 0
3 years ago
Read 2 more answers
Someone please let me know the answer ​
erastova [34]

Answer:

The answer is 30°

Step-by-step explanation:

when \:  \:   \sqrt{3}  \sin( \alpha )  -  \cos( \alpha )  = 0 \\  \sqrt{3}   \sin( \alpha )  =  \cos( \alpha )  \\ multiply \: by \:  \frac{1}{ \sqrt{3}  \cos( \alpha ) }  \\ then \\  \frac{ \sin( \alpha ) }{ \cos( \alpha ) }  =  \frac{1}{ \sqrt{3} }  \\  \tan( \alpha )  =  \frac{1}{ \sqrt{3} }  \\ then \:  \alpha  = 30

3 0
3 years ago
How can a percent be used to describe a change in quantity?
Anestetic [448]

Answer:

remember,a percent means "per 100".You can describe the change as a fraction comparing the amount of change to the original and then use a proportion to rewrite your problem as a percentage out of 100.

5 0
2 years ago
Please help me ...................
vova2212 [387]

Based on the chart on the left, you can see there are 2 dragonflies with the lengths of 3 1/4 inches. Therefore, 2 marks should be made over the 3 1/4 inches spot on the line plot.

Hope this helps

Brainliest would be appreciated

-AaronWiseIsBae

5 0
4 years ago
Concert:<br> a.) 2 meters to centimeters<br> b.) 40 milliliters to liters​
Vedmedyk [2.9K]

Answer:

The answer is b.) hope this helped.

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Work out the value of 10^2-4^3<br> give your answer as a power of 6
    7·2 answers
  • Draw or write to explain why i hundred 4 ten and 14 tens name the same amount
    8·2 answers
  • In a large corporate computer network, user log-ons to the system can be modeled as a Poisson RV with a mean of 25 log-ons per h
    5·1 answer
  • Desenați două drepte și o secantă, numerotați unghiurile și scrieți perechile de unghiuri:a) alterne interne b) interne de aceea
    11·1 answer
  • Can someone tell me what those signs in each of those equations mean? I haven't seen them before
    5·1 answer
  • HELP PLEASE<br><br> If b/8 = b+8/8, then 2/7 = ?
    15·1 answer
  • ​Which values are solutions to the inequality? ​ ​5r≤6r−8​ ​ Select each correct answer. r = 7 r = 8 r = 9 r = 10
    12·2 answers
  • I NEED THE ANSWER PLFAST PLEASE
    11·1 answer
  • Please help will mark brainlyist
    7·1 answer
  • Please help and show work !!!!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!