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
nekit [7.7K]
2 years ago
7

In right triangle PQR , PQ=12 cm and QR=5cm .What is cos R?

Mathematics
1 answer:
Juliette [100K]2 years ago
7 0

Answer:

cosR = \frac{5}{13}

Step-by-step explanation:

assuming the right triangle has ∠ Q = 90° with legs 5 and 12

then this is a 5- 12- 13 right triangle with hypotenuse PR = 13 cm

then

cosR = \frac{adjacent}{hypotenuse} = \frac{QR}{PR} = \frac{5}{13}

You might be interested in
Which step in the construction of copying a line segment ensures that the new line segment has
Nesterboy [21]

The steps 5 and 6 in the construction of a new line segment  ensures the lengths are equal.

A line segment in geometry has two different points on it that define its boundaries. Alternatively, we may define a line segment as a section of a line that joins two points.

Below are the steps for copying a line segment:

  • 1. Let's begin with a line segment we need to copy, AB.
  • 2. we take a point C at this stage. That will be one endpoint of the new line section, either below or above AB.
  • 3. Now we place the the compass pointer on the point A of line segment  AB.
  • 4. We spread the compass out until point B, making sure that its breadth corresponds to the length of AB.
  • 5. We place the compass tip on the point C created in step 2 without adjusting the compass's width.
  • 6. We now draw a rough arc without adjusting the compass's settings. we add a point D oh the arc . The new line segment will be formed by this.
  • 7. From C, draw a line to D;CD thus formed is equal to AB.

Hence steps 5 and 6 are the steps in the construction of a new line segment which ensures the lengths are equal.

To learn more about line segment visit:

brainly.com/question/25727583

#SPJ9

5 0
1 year ago
A librarian has 883 books to place on shelves. Each shelf holds 98 books.
egoroff_w [7]

Answer:

She will be able to fill 9 shelves with 1 book left over.

Let me know if you need more help! :)

3 0
3 years ago
Read 2 more answers
Tomas favorite sahde of teal paint is made with 7 ounces of blur paint to every 5 ounces of green paint. If she wanted to create
Simora [160]

Answer:

4

Step-by-step explanation:

3 0
3 years ago
2u + 1 &gt; -5/4u - 9<br><br> help please
FinnZ [79.3K]
2u + 1 > -5/4u - 9
2u + 5/4u > -9 - 1
8/4u + 5/4u > -10
13/4u > -10
u > - 10 * 4/13
u > -40/13 or - 3 1/13 <=
4 0
3 years ago
-2=___+6<br> Fill in the blank!
Drupady [299]

Answer:

<h2>-8   +6=-2  </h2>

it took me a while, but yeah....

hope im right, and i really hope this helps.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • How many ways can the letters of the word ORGANISM be arranged so the third letter is G?
    11·1 answer
  • Marcello plans to purchase 5 pounds of apples for the week. In addition to the cost of the apples, Marcello will need to pay a 5
    5·1 answer
  • Solve for y: 1/3y+7≥12<br><br> A) y ≤ 5/3<br> B) y ≥ 15<br> C) y ≤ 5<br> D) y ≥ 57
    8·1 answer
  • The following stem-and-leaf plot represents the times in minutes required for 26 co-workers to commute to work. Use the data pro
    11·1 answer
  • Finn had a job babysitting his neighbors' kids that paid $8 an hour and
    7·1 answer
  • HELP PLS
    11·2 answers
  • Write an equivalent expression for 5n +4y + 2n​
    7·2 answers
  • Using pennies, nickels, dimes or quarters, determine which kind of coin is in each circle. First clue: The total value of the fo
    7·1 answer
  • What is the structure of prokaryotic cells?
    5·1 answer
  • Someone help me with these 3 problems!!!! Due tomorrow!!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!