Answer:

Step-by-step explanation:
The identity you will use is:

So,


Now, using the difference of sin
Note: state that 

Solving the difference of sin:



Then,

Once

And,



Therefore,

Answer:
Figure 1 is 50 cm. Figure 2 is 225 mm.
Step-by-step explanation:
1/4;2/5;83/100;3/2;7/10;4/5
Answer:
It is most-likely a red marble
Step-by-step explanation:
I say it is a red marble because as you said, there are 10 red marbles and 6 blue ones and since there are 4 more red marbles, there is a higher perchentage of it being a red marble . (I hope i answered your question)
Answer:
7.02 x 10^1
Step-by-step explanation: