Alecdanub

Let us have republicans called R and Democrats called D. We can have RRRRRDDDD, RRRRDDDDR, RRRDDDDRR, RRDDDDRRR, RDDDDRRRR, and DDDDRRRRR. Notice that all cases have the same amount of arrangments. So the ways the committee members can sit is \(4!*5!*6=17280\).

i think it is D.

On the other one, I said the answer was 3/8 because it is 3/20 divided by 2/5.

1.39

3. \(x = 3 \sqrt{2}\)

I think it is 60.

Hint:The two lines formed would be ​\(y=\frac{x}{2} \) and \(y=2x\)

If it is 3/20 and 2/5, then it is \(\frac{\frac{3}{20}}{\frac{2}{5}}=\frac{3}{8}\)

I didn't quite get the question because it says the probability of drawing 2 green marbles is 320 and same with one green marble, it says the probability is 25.

2.cos(-θ)=cos(θ) and sin(-θ)=-(sin(θ))so cos(θ)=4/5 this is a 3-4-5 right triangle so sin(θ)=-(sin(-θ))=3/5. So sin(-θ)=-3/5

3. π=180 and tan(x)=tan(180+x). Thus, the answer is 2/5.

Hint: You can try substituting in the coordinates point and try to see which one fits all the cases.