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
Katarina [22]
3 years ago
15

Please answer this now in two minutes

Mathematics
1 answer:
Xelga [282]3 years ago
7 0

Answer:

17.5

Step-by-step explanation:

The following data were obtained from the question:

Angle R = 105°

Side R = r

Side S = 15

Side T = 6

The value of r can be obtained by using cosine rule formula as shown below:

inding sides:

r² = s²+ t² – 2st cos(R)

r² = 15² + 6² – 2 × 15 × 6 × cos105°

r² = 225 + 36 – 180 × cos105°

r² = 261 + 46.587

r² = 307.587

Take the square root of both side

r = √307.587

r = 17.5

Therefore, the value of r is 17.5

You might be interested in
A rectangular piece of wood is 12 centimeters longer than it is wide. A strip 1 centimeter wide is cut off all around. This decr
denis-greek [22]

Answer:

Length 37 cm, width 25 cm.

Step-by-step explanation:

Let the original dimensions be length x and width x - 12 cms.

The new dimensions will be length (x - 2) and width (x - 12 - 2) = x-14 cm.

So , from the areas, we have:

x(x - 12) - (x - 2)(x - 14) = 120

x^2 - 12x  - (x^2 - 16x + 28) = 120

-12x + 16x - 28 = 120

4x = 148

x = 37 cms

So the length was 37 cm and the width was 37-12 = 25 cm.

7 0
3 years ago
The graph of f(x) is shown. What is the value of f (x) when x= -2?
Elden [556K]
C. 3.5
You have to go to -2 on the “X axis” and find the corresponding “Y” value on the line.
7 0
3 years ago
A water hose had filled up 1/8 of a pool after 1/2 of an hour. At this rate, how many hours would it take to fill the pool.
GenaCL600 [577]
4 hours. You would multiply 1/8 by 1/2 and get 4.
8 0
2 years ago
*<br>87-1 = 25+2 simplifies to :​
Xelga [282]
It simply to nothing
3 0
2 years ago
Read 2 more answers
Ay+6+4y-13=26 please solve for y
Harlamova29_29 [7]
The answer would be y= 33/a+4 I hope is helps.
8 0
3 years ago
Other questions:
  • What is 2.4 in the form of a fraction using integers
    10·1 answer
  • What are the domain and range of the exponential function below? <br><br> <img src="https://tex.z-dn.net/?f=F%28x%29%20%3D%205%5
    13·1 answer
  • Eighty-seven decreased by three times a number is greater than one hundred sixty-five
    9·1 answer
  • The table shows information about all students doing GCSE's at a school.
    6·1 answer
  • Find the first five terms of each arithmetetic sequence describe a1 = -12 d = 5
    9·1 answer
  • Brad has a garden with dimensions 12 feet long x 7 feet wide. He wants to enlarge the garden to an area of 119 square feet. How
    13·1 answer
  • I have been saving up for a 2002 Jeep Grand Cherokee. The car costs $6,000. As of now, I have saved
    5·1 answer
  • Can you help me solve it​
    12·1 answer
  • PLEASE HELP !! ILL GIVE BRAINLIEST !!
    11·1 answer
  • Solve by factoring: <br> a² = 25
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!