For this case we must indicate the correct sign between the following numbers:

We have to:

So, we have to 
Answer:

Answer:
180
Step-by-step explanation:
12x15=180
Hi there!
To solve, we must use the following trig identity:
sin(u - v) = sin(u)cos(v) - sin(v)cos(u)
We can rewrite the left hand side of the equation as:

Split the fraction:

First fraction reduces to 1:

Simpify each with common arguments:

Answer:
1 1/3
Step-by-step explanation:
x = 4/3 or 1 1/3
The probability is 0.0008.
I used a binomial probability on this one, since there are two outcomes (either pass or fail); the events are independent (the probability of one person passing does not influence the probability of another passing); and there are a fixed number of trials (in this case, 20).
For binomial probabilities, we use the formula:

With our information, we have: