Find the magnitude of a vector with initial point A(3, 4, 10) and terminal point B(8, 4, –2). A: 0
B: 13
C: 8
D:16
​

B

Step-by-step explanation:

Use the distance formula in 3 dimensions

d =

with (x₁, y₁, z₁ ) = (3, 4, 10) and (x₂, y₂, z₂ ) = (8, 4, - 2)

d =

   =

    =

    =

     = 13 → B

i think the correct option is the second option.

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;