Given the points a (3,2) and b (-21,0) determine:

a. the slope of line ab
b. the length of ab
c. the midpoint of ab
d. an equation of ab

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c