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
Alex777 [14]
3 years ago
15

The law of cosines is a2+b2-2abcosC=c2 find the value of 2abcosC

Mathematics
2 answers:
quester [9]3 years ago
7 0
Isolating 2abCos(c) on one side of the equation and using the given values of a, b and c we can find the answer to this question as shown below:

a^{2} + b^{2} -2ab*cos(C)=c^{2}  \\  \\ 
2ab *cos(C)=  a^{2} + b^{2} - c^{2}  \\  \\ 
2ab *cos(C)=2^{2} + 2^{2}- 1^{2} \\  \\ 
2ab*cos(C) = 7
Westkost [7]3 years ago
4 0
2ab * cos (C)= 7

hope this helps you
You might be interested in
(3.2 x 10^14) (5.1 x 10^2) in scientific notation
tresset_1 [31]
Those expressions are already in scientific notation.
6 0
3 years ago
Jaylen wants to buy a book about animals.The original price is $4. What is the sale price
forsale [732]
The answer is $2.00 hope this helps
5 0
3 years ago
Use inductive reasoning to predict the next month in the pattern: January, April, July...
Scrat [10]

Answer:

c.) October

Step-by-step explanation:

the pattern just skip two months

8 0
3 years ago
Read 2 more answers
How are you today says me, And my twwwitteer is the value of (john12611092) witch equals
Advocard [28]

Answer:

thankyou for points

Step-by-step explanation:

please give me brainleist

7 0
3 years ago
Which points are on the axes 9 units from the origin?
Rudik [331]
I think you forgot to attach the graph along with the question. I am answering the question based on my research."P, J" are the ones among the following choices given in the question that are the points <span>on the axes 9 units from the origin. The correct option among all the options that are given in the question is option "C".</span>
6 0
3 years ago
Other questions:
  • In one settlement, there were 29 horses. There were 9 more brown horses than black horses. How many of each color were there?
    8·1 answer
  • Please help me, im struggling plz
    5·1 answer
  • Please show your work!<br> 25% of 80
    14·2 answers
  • Please Explain/Show your work!
    5·1 answer
  • The scale used on a map is 5 millimeters represents 32 kilometers. How many millimeters represent 160 kilometers?
    5·1 answer
  • P = <br> Ok ty please please
    6·1 answer
  • The graph of f(x) = xx is reflected across the x-axis and then across the y-axis to create the graph of function g(x).
    7·2 answers
  • What is the expanded form of 204.017
    15·1 answer
  • Find the surface area of the rectangular prism.<br> 4 in<br> 10 in<br> 3 in
    13·1 answer
  • List 5 examples of identity functions
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!