Eva loves to go fishing. Each time she catches a fish, there is a 70 % 70%70, percent chance that it is a northern pike and a 30 % 30%30, percent chance it is a walleye. Let W WW be the random variable that represents the number of walleye Eva gets if she catches 2 22 fish. W = # of walleye W=# of walleyeW, equals, \#, start text, space, o, f, space, w, a, l, l, e, y, e, end text 0 00 1 11 2 22 P ( W ) P(W)P, left parenthesis, W, right parenthesis 0.49 0.490, point, 49 0.42 0.420, point, 42 0.09 0.090, point, 09 Calculate the mean of W WW. μ W = μ W ​ =mu, start subscript, W, end subscript, equals walleye Show Calculator

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

15% chance.

step-by-step explanation:

3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.