What is the 8th term of the geometric sequence with this explicit formula?
an = -)(n-1)
o
a. -1280
b. -640
o
c. 1280
o
d. 640

How do you solve a question like this?

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.

For each sentence below, find the value of x that makes each sentence true. (515) 5 = 25* x= (813)2 = 4* x=