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
wlad13 [49]
3 years ago
12

Find the length a. a=?

Mathematics
1 answer:
algol [13]3 years ago
6 0
Cosine law 
a²=b²+c²-2ab*cosA

a²=13²+11²-2*13*11*cos(108)≈378.37
a≈19.45
You might be interested in
Cindy is preparing for a 25-mile charity run hosted by her school's Athletic Club on their home track. In preparation for the ru
deff fn [24]

What are the answer choices?

5 0
3 years ago
Read 2 more answers
A shopkeeper buys pens at the rate of ₹ 75 per 100. for how much should he sell each pen so as to make a gain of 15%? please hel
Lady bird [3.3K]

Answer:

He should sell each pen of Rs.0.8625 so as to make a gain of 15%

Step-by-step explanation:

  • Cost price of 100 pens = Rs.75
  • Cost price of 1 pen=\frac{75}{100} = 0.75
  • Gain%= 15%

Gain=15%X 0.75= 0.1125

SP = CP+Gain = 0.75+0.1125=0.8625

<u>So, He should sell each pen of Rs.0.8625 so as to make a gain of 15%</u>

#Learn more:

By selling 60 pens a shopkeeper gain the cp of 15 pen. If he bought 20 pens in rs36. Find the sp of one pen

brainly.in/question/15083989

https://brainly.in/question/7469007

3 0
3 years ago
Which statement is a correct interpretation of the vertical line test?
Veseljchak [2.6K]
Vertical line is a way to determine whether a functin is a function or not.
5 0
3 years ago
Read 2 more answers
Of the 50 plays attributed to a​ playwright, 11 are​ comedies, 19 are​ tragedies, and 20 are histories. If one play is selected
Cerrena [4.2K]
The answer is 3/5, or 60%

11 (comedies) + 19 (tragedies) = 30
30/50 = 3/5, or 60%
3 0
3 years ago
PLZ HELP
shepuryov [24]
Reflecting the X axis flips to the left or right. -3 would become positive 3. The answer is (3, 7)
6 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP ASAP.
    9·1 answer
  • 98 POINTS ONE GEOMETRY QUESTION PLEASE ANSWER!!!!!!!!!!!!!!!!!!!!!!!!
    8·2 answers
  • Problems of addition, subtraction, multiplication and division of integers for other people to solve.
    7·1 answer
  • Which measurement would Lan need to know when he buys flooring for his kitch
    5·1 answer
  • Help please I will Brainly
    5·2 answers
  • Lisa wanted to study how the area of a rectangle changes with the length if it’s width is fixed. She computed the areas of sever
    6·1 answer
  • -6x + 1 &gt; -23 which value of x is in the solution set of the inequality
    8·1 answer
  • Hey and help me help me help plzzzzzzzzz
    15·1 answer
  • 15x - 10= 65<br> 15x =<br> X=
    10·2 answers
  • Can someone please send the answers to these questions with explanation? (Attachment) (30 POINTS)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!