A librarian is putting 87 books in boxes for the book sale. He puts 10 books in each box.
How many boxes will he fill, and how many
extra books will he have?
The librarian will fill > boxes and have
extra books.

Find the equation of the line that goes through the points (4, –1) and (2, –5). use slope formula,equation,to find the slope of a line that passes through the points. m = use slope-intercept form, y = mx + b, to find the y-intercept (b) of the line. b = write the equation in slope-intercept form, y = mx + b.

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

What is the missing step in this proof ?