1,990 rounds to the nearest hundred

2x+3y=12 x-y=6 solve the following system equations

Evaluate the integral. (sec2(t) i t(t2 1)8 j t7 ln(t) k) dt

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?