Soon!
1. if v1= (2, 4) and v2= (-1, 5), then v1*v2 is equal to which of the following?
a. 22
b. (8, -5)
c. 18
d. (-2, 20)

i think its either c or d but idk if you are supposed to add the two numbers together which would equal c or not.

2. if v1= (2, 5) and v2= (4, -3), then the angle between the two vectors is °.

Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.

Abcd is a parallelogram. the diagram is not drawn to scale. if m

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.