Answer:
a2=b2+c2-2bc cos a
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
First you want to rewrite the equation
2*1-3*(-1)+1
Then you want to do order of operations until you get your answer!
I hope this helps!
Answer:
ill ask a question if u want
Step-by-step explanation:
11, 3, -3, -12
Hope this helps :)
9 books cost 32
Step-by-step explanation:
5 books =20
1 book= 5÷20 = 4
9 books = 4×9 = 32
