Yes ,it is a contact force .Example when a ball touches de floor friction makes it go slow and makes it go up
Answer:
<B = 107
Step-by-step explanation:
This two triangles are congruent by SSS
So angleB = angleD
We can find angle D by the sum of the angles of a triangle
A+C+D = 180
32+41+D = 180
73+D = 180
D =180-73
D =107
C = B = 107
Answer:

Step-by-step explanation:
We can rewrite the question as (x-5)*(x-5).
Using the FOIL Method (First, Outside, Inside, Last):

This simplifies to 
Answer:
A
Step-by-step explanation:
sin 30 = y/7
Sin is being used and there is only one option with sin in it, so that is the right one.