Answer:
<h2>90°</h2>
Step-by-step explanation:
First you must calculate the module or the magnitude of both vectors
The module of u is:

The module of v is:

Now we calculate the scalar product between both vectors

Finally we know that the scalar product of two vectors is equal to:

Where
is the angle between the vectors u and v. Now we solve the equation for 

the answer is 90°
Whenever the scalar product of two vectors is equals to zero it means that the angle between them is 90 °
Answer:
2400
Step-by-step explanation:
2000 / 100 = 20
20 x 20 = 400
2000 + 400 = 2400
Answer: m≤-0.45
Step-by-step explanation:
8*(10m+6)≤12
8*10m+8*6≤12
80m+48≤12
-48 -48
80m≤-36
:80 :80
m ≤ -36/80
m≤-9/20
m≤-0,45
Answer:
174lbs
Step-by-step explanation:
I'm not positive but its my best shot
This will help a lot if you know how to do proportions... hope I helped