(1 point) if y=∑18i=1xi and every xi is i. i.d with a chi-squared distribution with 6 degrees of freedom, find the mgf of y. m(t)= what is the distribution of y? select all that apply. there may be more than one correct answer. a. exponential(λ=54) b. gamma(α=2,β=108) c. gamma(α=54,β=2) d. gamma(α=1,β=1/54) e. chi−squared(df=108) f. exponential(λ=108) g. gamma(α=1,β=1/108) h. chi−squared(df=54) i. none of the above

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

sas (side angle side)

aa (angle angle)

sss(side side side)

sas find two sides with an angle in between

aa is finding two angles and the third will add up to 180

sss find all sides

step-by-step explanation:

d. corresponding side lengths in similar triangles are proportional in length.

step-by-step explanation: