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
Katen [24]
3 years ago
6

PQR is a triangle. PR= 23cm, PQ= 22cm and angle QPR= 48 degrees. Calculate length of QR.

Mathematics
1 answer:
UNO [17]3 years ago
8 0

Answer:

The length of QR is approximately 18.3 cm

Step-by-step explanation:

The given parameters are;

The length of the side PR = 23 cm

The length of the side PQ = 22 cm

The measure of the angle QPR = 48°

By cosine rule, we have;

\overline{QR}^2 = \overline{PR}^2 + \overline{PQ}^2 - 2 \times \overline{PR}  \times \overline{PQ} \times cos(\angle QPR)

Plugging in the values gives;

\overline{QR}^2 = 23^2 + 22^2 - 2 \times 23  \times 22\times cos(48^{\circ}) \approx 335.84

\therefore \overline{QR} \approx \sqrt{335.84} \approx 18.3

The length of QR ≈ 18.3 cm

You might be interested in
The bells are adding a new room to their house. The room will be a cube with volume of 5,832 ft^3. They are going to put in hard
gtnhenbr [62]
1620 because 5832 is 18 to the 3rd power which means that because it is a cube 18 to the second power will be able to find the base which 324 ft^2, multiplying that by 5 dollar gets 1,620 dollars
4 0
3 years ago
The table shows ticket prices for the local minor league baseball team for fan club members and non-members. For how many ticket
yan [13]
<span>For the club members 2 tickets will be equal to ticket for non club member because 3 is half of 6</span>
8 0
4 years ago
High Cholesterol. The percentage of U.S. women
HACTEHA [7]
Omg this is so right
6 0
3 years ago
HELP ASAP- IF YOU ARE CORRECT I WILL MARK BRAINLY
Vilka [71]

The Answer is:

B) -3/2

5 0
3 years ago
Read 2 more answers
The latest online craze is a new game, Khan on Seven. You get 100 points for playing the game. In addition, you get 50 points fo
baherus [9]

Answer:

Answer: 50x+100\geq18,00050x+100≥18,000

Let w denotes a seven letter word which Sal will need to make to break the record.

Since you get 50 points for each seven-letter and 100 points for playing the game.

Then the total points earned by you by making w seven letters words will be:

50x+10050x+100

Since, Sal wants to break that record, and needs 18,000 points or more to do so.

Then , the required inequality will be :

50x+100\geq18,00050x+100≥18,000

8 0
3 years ago
Other questions:
  • WILL GIVE BRAINSLIEST EASY. Find each product mentally. Show the steps used.
    14·1 answer
  • BRAINLIESTT ASAP! PLEASE HELP ME :)
    10·1 answer
  • What is the annual interest rate if $1600 is invested for 6 years and $456 in interest is earned?
    13·1 answer
  • Find the exact area of a circle having the given circumference. 3pi A =
    7·2 answers
  • Fin the surface area of the figure to the nearest whole number.
    9·1 answer
  • a bird that was perched atop a bird 15 1/2 foot. tree dives down six feet to a branch below how far above the ground is the bird
    12·1 answer
  • Which sign should be used in the circle below so that the value of the expression is 2? [4+8×3]÷(16○2)
    7·1 answer
  • Use the long division method to find the result when<br> 3x^3 + 13x^2 + 11x + 1 is divided by x+1
    14·1 answer
  • Please find it please ​
    12·2 answers
  • What is The greatest common factor of 48 and 81?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!