In 2010, the continent of South America had a population of 395,280,204 . Which of the following is the closest estimate of this number?

What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.

Tell whether the two rates form a proportion