A = L * W = 75 so L = 75/W Cost = 4W + 8(2L + W) = 4W + 16L + 8W = 12W + 16L = 12W + 1200/W C' = (12(W^2 - 100))/(W^2) = (12(W-10)(W+10))/(W^2) so W = 10 then L = 7.5
0.75^2 = 0.5625.....sq rt 0.5625 = 0.75
The probability that all marbles are yellow is
(7/20) (7/20) (7/20) = 343/8000
We are given
x = 2 and 3
u = 2.5
s = 0.5
Getting the z score
z = (2 - 2.5) / 0.5 and (3 - 2.5)/ 0.5
z = -1 and 1
The percentage is
1 - 0.1557 = 81.5%
The answer is A because 8 is where you started and each time the x number goes up by on the y number goes down by seven (-7)
Answer:
62.34
Step-by-step explanation:
Substitute n = 0 to n = 5 into the expression and sum the terms, that is
3 [ 
+ 
+ 
+ 
+ 
+ 
]
= 3 [ 1 + 
+ 
+ 
+ 
+ 
]
= 3( 
)
= 3 × 20.781
= 62.34 ( to the nearest hundredth )
