If a = 6, −9, 3 , then what is 4a?
4a = how does the magnitude of 4a compare to the magnitude of a?
1. the magnitude of 4a is the same as the magnitude of a.
2. the magnitude of 4a is a factor of 4 greater than the magnitude of a.
3. the magnitude of 4a is zero.
4. the magnitude of 4a is a factor of 4 less than the magnitude of a.
5. not enough information is given.

Option 2.

Step-by-step explanation:

It is given that

a = <6,-9,3>

We need to compare the maginitude of vertor a and vector 4a.

If a vector is defined as v = <x,y,z>, then its magnitude is defined as

Using the above formula we get

The vector 4a is  

The magnitude of 4a is a factor of 4 greater than the magnitude of a.

Therefore, the correct option is 2.

the radius is 2 times the diameter.

step-by-step explanation:

hello,

as   long as they add up to 180 its correct.