Find the angle between u = (8.- 3) and v = (-3,- 8) round to the nearest tenth of a degree.
a. 180
c. 0
b. 90
d. 450

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 °

sorry i just need to anwers this to get points

step-by-step explanation:

the solution is x=1

step-by-step explanation:

we are given our   equation as

let's assume

left side function is

right side function is

now, we can draw graph

and then we can get intersection point

the intersection point will be solution

so, the solution is

x=1