Sin ( theta ) = - √2 / 2
We will use the unit circle:
m ∠( theta ) = 225° = 5π / 4 + 2 k π , k ∈ Z
m ∠( theta ) = 315° = 7π / 4 + 2 k π, k ∈ Z
Answer:
The angle measure is 5π/4 or 7π/4.
The color red can only appear 0,1 or 2 times. We also have that there are in total 9 outcomes. Hence, each event has the same probability, 1/9. Since the definition of probability is the number of favorable outcomes over the total number of outcomes, we get that since in 1 outcome we have both spins turning red, the probability of 2 times appearing red is 1/9. We also have 4 spins where there is only one red; rb, rg, gr, br. Hence, the probability is 4/9. Now, we have 4 outcomes where there is no red. Hence, the probability for 0 reds is also 4/9.
Succinctly P(0 reds)=4/9, P(1 red)=4/9, P(2 reds)= 1/9
Answer:
2¼ mph
Step-by-step explanation:
It takes ⅓hour to walk to the library.
⅓ •3 = 1 hour
¾ • 3 = 9/4 = 2¼ miles/hour
Answer:
30x^3 tr
Step-by-step explanation: