Aparent wants to estimate the mean word length for the words in a child's board book. they randomly select one of their child's board books which has 8 pages and then randomly select two words off of the page and record the number of letters in each word. the table shows the results from the survey. using the sample results estimate the mean word length of any word in the book. *

a.3.3 letters

b.4.12 letters

c.8.25 letters

d.66 letters

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.

The graph is supposed to show f(x) = 3 sin (x/4+1) - 1/2. which of the following are correctly represented in the graph? select two of the following that apply.