The vertices of a triangle are a(–2, 2), b(9, 0), and c(1, –4). if the triangle is a right triangle, which vertex is the right angle?
a. a
b. b
c. c
d. none, it is not a right triangle

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.

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p. mc) knowing that it is going to rain tomorrow, and going to bed before 9 p. md) knowing that you have a test in school tomorrow, and studying thw night before