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
Sav [38]
3 years ago
12

Show me how to do this​

Mathematics
1 answer:
romanna [79]3 years ago
4 0

Answer:

<h2>x = 7 cm</h2>

Step-by-step explanation:

The perimeter of the given triangle:

P = (2x + 1) + (x + 2) + (3x - 9) and P = 36 cm.

Therefore we have the equation:

2x + 1 + x + 2 + 3x - 9 = 36          <em>combine like terms</em>

(2x + x + 3x) + (1 + 2 - 9) = 36

6x - 6 = 36      <em>add 6 to both sides</em>

6x = 42          <em>divide both sides by 6</em>

x = 7

You might be interested in
Which is greater than 5/6
Vlad1618 [11]
6/6 is greater than 5/6

3 0
3 years ago
How many times as heavy is the golden eagle as the northern bald eagle
alex41 [277]

Answer:

IDK but I need the points so

Step-by-step explanation:

7 0
3 years ago
PLEASE HELP! For the function f(x) = x^2, what effect will multiplying f(x) by 1/2 have on the graph?
zhenek [66]
The answer is D.  The graph will be compressed vertically.

1/2f(x) means half of the y values of the original function making the graph shorter
5 0
3 years ago
Lin runs 5 laps around a track in 6 minutes.
Paladinen [302]

Answer:

25.2

Step-by-step explanation:

6/5 is 1.2, so it takes 1.2 minutes to run one lap.

This means 21 x 1.2 = the minutes it takes to run 21 laps around the track.

Therefore it takes 25.2 minutes to run around the track 21 times.

3 0
2 years ago
What is another way to name angle 3?
fiasKO [112]

Answer:

intimately there are three types of angles a cute angle and angle between zero and 90° right angle and angle 90 degree angle of two angle and angle between 90 and 180 degree

7 0
1 year ago
Other questions:
  • Y= 1/4x + 7 y = 1/2x + 5 The y-coordinate of the solution to the system shown is ____
    8·2 answers
  • How is estimating decimals when adding helpful?
    11·1 answer
  • Two cars leave the same parking lot, with one heading north and the other heading east. After several minutes, the northbound ca
    5·1 answer
  • In order to solve for the variable In the equation 1-(x+2)+2x=5(2x-5)-x, Mikel first applies the distributive property. Which eq
    8·2 answers
  • A bag of popcorn contains 438 calories and serves 3.5 people how many calories are in each serving
    13·2 answers
  • Tammy bought 6 CDs that were each the same price. Including sales tax, she paid a total of $94.80. Each CD had a tax of $0.05. W
    12·1 answer
  • PLEASE HELP! What is the number ( code ) ?
    14·2 answers
  • Solve (x^3-4x)(2x^2-3x)​
    15·1 answer
  • Sophie is training for the triathlon. She swims 40 meters in 50 secs, moving at a constant speed. Sophie wants to know her rate
    13·1 answer
  • A skyscraper with 102 floors is 1,326 feet tall each floor is the same height how tall is each floor show your work
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!