Factor completely −7x2 + 14x − 21.

−1(x2 − 14x + 21)
−7x(x2 − 2x + 3)
−7(x2 + 2x − 3)
−7(x2 − 2x + 3)

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.

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?