Write EF as the sum of unit vectors E(-5,-2,4) and F( 6,-6,6).
a. 11t-4j+6k
b. 11t-4j+2k
c. 11t-6j+2k
d.6t-4j+2k

PLLEEAAASS HELLL

A vector is the difference of two points.

EF = F-E = (-5 - 6, -2 - -6, 4 - 6) = (-11, 4, -2)

In terms of unit vectors that's

-11i + 4j - 2k

Ah, they did EF=E-F.   I do it the other way, EF=F-E, which I think is more standard.  Let's roll with it.

EF = E - F = 11i - 4j + 2k

B

answer:

1. 0.04

2. 0.15

step-by-step explanation:

i just finished that assignment for properties of probability distributions.

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.