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
marta [7]
3 years ago
7

The roof of a building is 9 m high. A rope is tied from the roof to a peg on the ground 12 m away from the wall. What is the len

gth of the rope?
Mathematics
1 answer:
Alexus [3.1K]3 years ago
7 0

Answer:

15 m

Step-by-step explanation:

Height of buiding h= 9m

Lenght from building l= 12m

let the length of the rope be x=???

Applying Pythagoras theorem

x^2=h^2+l^2

x^2= 9^2+12^2

x^2= 81+144

x^2=225

square both sides

x=√225

x=15 m

Hence the length of the rope is 15 m

You might be interested in
Help me with this pls
oksano4ka [1.4K]

Answer:

x=9

Step-by-step explanation:

dyyfjfjsjujsjsivjsjicuejie82iu3828i$>÷>$>$>×&$:

4 0
3 years ago
Read 2 more answers
Find LeShawn's average speed in meters per hour. 1,448 meters per minute
yanalaym [24]
If he's average speed per minute is 1,448 meters per minute, and there are 60 minutes in a single hour. You would multiply 1,448 by 60 to get the answer of 86,880 meters per hour.
6 0
3 years ago
Given the function f defined by formula f(x)=2x+1 find the following f(4)
Nezavi [6.7K]
The correct answer you need will equal 9
6 0
3 years ago
Geometry area question. Please help!
timurjin [86]
You can calculate polygon area with only apothem OR side length.

apothem only
area = apothem^2 * 6 * tan (180/6)
area = 10.4^2 * 6 * 0.57735
area = 108.16 * <span> <span> <span> 3.4641 </span> </span> </span>
area = <span> <span> <span> 374.677056 </span> </span> </span> square yards

side length only
area = 6 * 12^2 * / 4*tan(30)
area = 864 / 4 * 0.57735
area = 864 / <span> <span> <span> 2.3094 </span> </span> </span>
area = <span> <span> <span> 374.1231488698 </span> </span> </span> square yards

If apothem and side length were given with more precision, the answers would be closer.

Source:
http://www.1728.org/polygon.htm


5 0
3 years ago
I really need help would please like help thanks
lawyer [7]
The reciprocal of a fraction \frac{a}{b} is the same fraction "upside down" \frac{b}{a}.

The reciprocal of a whole number N is "1 over" that number \frac{1}{N}.

10/9
11/1 or 11
1/10
8 0
3 years ago
Other questions:
  • Please help me figure this out
    13·1 answer
  • And, S2
    13·1 answer
  • The value of a three digit number if the tens digit is c, the hundreds digit is three less than the tens and the ones digit is 0
    14·1 answer
  • The zoo uses 10 pounds of apples each day.how many pounds of apples should be on the weekly grocery list
    9·1 answer
  • Find AB in 3 significant figures
    10·1 answer
  • How many cups are in 4 liters? (1 liter = 1.06 quarts and 1 quart=4 cups)
    13·2 answers
  • the points (18,21) and (36,42) form a proportional relationship. find the slope of the line through points. Then use the slope t
    9·1 answer
  • During a 12-hour period, the temperature in a city dropped from a high of 60°F to a low of -25°F. What was the range of the temp
    8·1 answer
  • Can anyone help me with number 3 please
    14·1 answer
  • tammy is going to rent a truck for one day. there are two companies she can choose from, and they have the following prices. com
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!