Answer:
The answer is 10.
Step-by-step explanation:
Answer:
5 liters
Step-by-step explanation:
10 x 0.5 = 5
Answer:
-6=m
Step-by-step explanation:
m+6=3m+14
-m -m
6=2m+14
-14 -14
-12=2m
-12/2=-6
Answer:
(d).
Step-by-step explanation:
sin² β + cos² β = 1
cos (α + β) = cos α cos β - sin α sin β
cos α = √(1 -
) = 21 / 29
cos β = 12 / 13
sin β = √(1 -
) = 5 / 13
sin α = 20 / 29
cos (α + β) =
×
-
×
=
132 is rounded to the 130 cause you just look at the last number and you see what is the closes zero that's why it is 130