caycay17
caycay17
25-06-2018
Mathematics
contestada
Help Please regarding the law of cos.
Respuesta :
mkryukova19
mkryukova19
25-06-2018
a=4,
b=3,
c= 2
a² + b² -2abcosC =c²
a² + b² - c² = 2abcosC
2abcosC
= 4² + 3² -2² = 16 + 9-4=
21
Answer :
B.21
Answer Link
Аноним
Аноним
25-06-2018
The equation can be solved for 2abcosC
a²+b²-c² = 2abcosC
4²+3²-2² = 2abcosC
16 + 9 - 4 = 2abcosC
25 - 4 = 2abcosC
21 = 2abcosc
Answer Link
VER TODAS LAS RESPUESTAS ( 85+ )
Otras preguntas
PLS HELP ME ASAP FOR 3, 4, and 5 (SHOW WORK!!) + LOTS OF POINTS!
Can you plz help me right now
How do you solve this. the question is For the given question, write your solution to this problem. You are not obligated to write the code.
In your own words, give two reasons why it is important to work with a partner while doing a lab
there is a small park in a corner made by two perpendicular streets. the park is 100ft by 150ft, with a diagnol path. What is the length of the diagnol
The Espionage Act of 1917 and the Sedition Act of 1918 showed that Americans
Question 4: List three characteristics of a leader. Then list three characteristics of a manager.
jojo is planning on serving ice cream sundaes to 25 guests each tub of ice cream served 10 poeiple and costs $3.99 how much will he spend on icecream ?
What is the answer? I don't get it
the equation of line k is y=1/5x-1/8. what equation of the line that is perpendicular to line k and passes through (0,0)
