Given points O(0,0), A(4, 12), and B(-9,3), are OA and OB perpendicular?*
A. OA and OB are perpendicular because ala2+b1b2=0.
B. OA and OB are not perpendicular because a1 b1+ a2b270
C. OA and OB are perpendicular because al b1+ a2b2 =0.
D. OA and OB are not perpendicular because ala2+b1b280.
This is a required question

What is the multiple zero and multiplicity of f(x) = (x ? 3)(x ? 3)(x + 5)? multiple zero is 3; multiplicity is 2 multiple zero is 5; multiplicity is 1 multiple zero is ? 5; multiplicity is 1 multiple zero is ? 3; multiplicity is 2

Write the rational number in lowest terms 99/-15

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.