A rocket is launched from the ground, and its height is recorded every second. The data is shown in the table. Rocket Height
Time Height
(seconds) (feet)
0
0
Breazy - Ch.
1
176
2
320
3
432
4
512
5
560
Using regression methods, which function best represents this data?
个
hannel
h = -16? + 1937
Oh = 112+ + 53
h = 184 (1.27)
S-
h = 1126
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Surses

the value of v.w= -12.

step-by-step explanation:

we are given three vector r,v and w as:

r = < 5, -5, -2> ; v = < 2, -8, -8> ; w = < -2, 6, -5>

we know that r,v and w could also be represented as:

r=5i-5j-2k

v=2i-8j-8k

and w= -2i+6j-5k

where i,j and k are the unit vectors of x,y and z-axis respectively.

also we know that it has the following property:

i.i=1 ; j.j=1; k.k=1

and i.=j.i=i.k=k.i=j.k=k.j=0

i.e. when we multiply two vectors or we find it's dot product we need to only multiply the components of x coordinates with each other; y with each other and z with each other.

hence, v.w= (2i-8j- -2i+6j-5k)

                  = 2×(-2)+(-8)×(6)+(-8)×(-5)

                  = -4-48+40

                  = -12

hence, v.w= -12

is there any photos or whatever?

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.