Given
.OABC is a tetrahedron
OA=a, OB=b, and OC=c.
point P and Q are such that OA =AP and 2OB = BQ
point M is a midpoint of PQ.
Find AB ,PQ, CQ ,QM ,MB ,OM in terms of a, b, and c.
To proof
we proof this by using the Triangle law of vector addition
when two vectors are represented by two sides of a triangle in magnitude and direction taken in same order then third side of the third side of that triangle represents in magnitude and direction the resultant of the vectors.
by using the diagram as shown below






hence proved
Answer:

Step-by-step explanation:
a^2 + b^2 = c^2.
if you draw out the triangle, you can substitute numbers into an equation.
6^2 + b^2 = 8^2
36 + b^2 = 64
b^2 = 64 - 36
b^2 = 28
b = 
The answer to the question
Answer:
15% off
Step-by-step explanation:
We know we paid $25.50 of the original $30. We can divide these two numbers
. This is means we paid 85% of the original price. The discount percentage is the remaining percentage from 85 to 100 which is 15. The pants were 15% off.