Test scores for a standardized math test follow a normal distribution with a mean of 73 and a standard deviation of 8. a random sample of 23 students took this math test. what is the probability that the average score of the 23 students falls above 75?

Use the matrix-column representation of the product to write each column of ab as a linear combination of the columns of a.

You are responsible for designing a new city. you are inspired by pierre charles l'enfant, who laid out the streets of our nation's capital. numbered streets run north and south, and lettered streets run east and west. avenues are named after states, and they intersect the streets on a diagonal. the streets are parallel and the intersections form similar triangles. 18th st. is 454 meters long and the intersection of 18th and k st. is 207 meters from connecticut ave. if 19th st. and k st. is 385 meters from connecticut ave., what is the length of 19th st.?

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5