9. What is the explicit formula for the sequence 400, 100, 25, 6.25, ... ? a. 91 = 400 - 4(n-1)
b. 91 = 400 · 1/4(n-1)
C. 9ı = 400 - 4(n-1)
d. 91 = 400 -4(n-1)

B as Blake Griffin

91 = 400 * 1/4(n - 1)

Step-by-step explanation:

For example plug in 2 for the n. That basically means the 2nd term.

400 * 1/4( 2 - 1)

2 - 1 = 1

1/4 * 1 = 1/4

400 * 1/4 = 100

And what does the second term say...

It also says 100 over there as well.

So therefore I am right.

Blake Griffin is so smart!

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

0

step-by-step explanation:

equals the constant of proportionality.

solve for