What must be true about the slopes of two perpendicular lines, neither of which is vertical?
a.
the slopes are equal.
b.
the slopes have product 1.
c.
the slopes have product –1.
d.
one of the slopes must be 0.

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.

Zach spent 2/3 hour reading on friday a 11/3 hlurs reading on saturday. how much more time did he read on saturday tha on friday