Important notes:
3 sides 1 angle - COSINE RULE
2 sides 2 angle - SINE RULE
since, the question wants to find the length of BC. In the end we will have 3 sides and 1 angle and use cosine rule
formula of cosine rule:
a² = b² + c² - 2bc Cos A° (to find the length)
Cos A° = b² + c² - a² / 2bc ( to find the angle, if there is given three sides and have to find the angle)
So just substitute,
a² = 13² + 15² - 2(13)(15) Cos 95°
a = 20.6 or 21
Answer:
Hay probabilidad
Step-by-step explanation:
porque hay mas boligrafos rojos que azules
Answer:
commutative property
Step-by-step explanation:
Either order or way you put the numbers, it will be the same answer.
650 is your answer because you have ti take away the zeros
Answer:
y=9/2x
Step-by-step explanation:
I used my notes.
