£156,210 would be the answer
Answer:
-$9.6
Step-by-step explanation:
X : ___ 1000 ____600 ____300 ___200
P(x): __ 1/1000 _ 2/1000 _ 2/1000 _ 5/1000
Expected winning per ticket :
Σ(X * p(X)) = [(1000 * 1/1000) + (600 * 2/1000) + (300 * 2/1000) + (200 * 5/1000) - price per ticket
= 1 + 1.2 + 0.6 + 1 - 7
= 3.8 - 7
= - $3.2
Expextwd winning if 3 tickets Is purchased :
3 * - 3.2= - $9.6
x equals negative 8 that's it
Answer:306
Step-by-step explanation:
since the width of the bottom square is 10, you split it between the triangles on top. You have to do this because 7 is not the whole width of the two triangles. So then the width of the triangles would be 12, 12 times 9 is 108, you'd have 216 total for both triangles and then the area of the square is 90, 90 plus 216 is 306.
