Step-by-step explanation:
sina = -√3/2




=±1/2
Since, π<a<3π/2
cos a = -1/2


OptionB
Answer:
Step-by-step explanation:
3(10 – 4x) + 6 = 12
first you need to use the distributive property
30 – 12x + 6 = 12
then subtract 6 from each side
30 – 12x = 6
then subtract 30 from each side
– 12x = -24
divide both sides by negative 12
x = 2
-4m + 2
if you combine all the like terms, that’s the answer you will get.
Answer:
D is Permutation with repetition right
Step-by-step explanation:
Answer:
it might be 6,6 22,22 and 13,13, 15,15
Step-by-step explanation: