How many numbers from 300 to 899 contain atleast one four

Digit problem

answer is 195

dont know the digits

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.

The cost y for a company to produce x T shirts is given by the equation y=15x+1500

Derivative of F (t) = e8t sin 2t

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