Which angle corresponds to the point (0, -1) on the unit circle?

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55

How many verticies does a triangular prims have