Given:
Two vectors are:
To find:
The projection of u onto v.
Solution:
Magnitude of a vector 
is:
Dot product of two vector 
and 
is:
Formula for projection of u onto v is:
On further simplification, we get
Therefore, the projection of u onto v is .
Answer:
I'm probably wrong
A-C
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given
Required
Express as scientific notation
The rule of scientific notation is that:
It is represented in form of: 
where 
will be represented as: a = 2.403; notice that the point was shifted forward by 3 units.
So:
n = -3
The equation becomes:
Approximate
Answer:
3:4
Step-by-step explanation:
Before we start to deal with the ratio, we need all lengths in the same units.
The width is 18 inches.
The height is 2 feet.
Let's convert the height to inches. Then we will have both dimensions in the same units, inches.
2 ft * (12 in.)/ft = 24 in.
Now we have:
width = 18 in.
height = 24 in.
ratio of width to height = 18 in. to 24 in. = 18/24 = 3/4 = 3:4
