QUESTION 10 A bag contains 1 gold marble, 9 silver marbles, and 29 black marbles. Suppose someone offers to play
this game. You randomly select one marble from the bag. If it is gold you win $4, if it is silver you win $3,
and if it is black you loose a dollar. What is your expected value if you play the game? Round to the
nearest penny.

c. side angle side. u shares the same sides

$6.42

step-by-step explanation:

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb