When does the graph of a quadratic function open upward of downward

A headline in a major newspaper read, "Breast-fed youth found to do better in school."a. Do you thinkthis statement was based on an observational study or a randomized experiment? Explain. b.

The source document states: (S) The process takes three hours to complete. The new document states: (S) The process takes three hours to complete. Which concept was used to determine the derivative classification of the new document?

Given a rectangle with a length of 48 and a width of 6, which rectangle is similar? A) rectangle with a length of 36 and a width of 3 B) rectangle with a length of 42 and a width of 6 C) rectangle with a length of 64 and a width of 8 D) rectangle

How are neuroscience and medical science alike?

Find the area of a square with side a when a is equal to the following values. Are the area of a square and the length of its side directly proportional quantities? Why or why not? a=4 cm Thee area of the square is __ square cm.

If Ivan has 2/3 hours in his MP3. Is there is more than or less than 60 minutes of jazz on Ivan MP3 player? Explain how you know

Jamal 5/6 of his homework. Margaret finished 3/4 of her homework and Steve finish 10/12 of his homework. Which students finish the same amount of homework?

How do you write the slope intercept form

Algebra 2 Substitutions x-9y=25 6x-5y=3

Math word problem. Mike paid $59.00 for a bike. He paid with FOUR bills. What were the bills? Tell me the denomination of each bill and how many were used. Make sure to explain to me how you know this and how it totals $59.00