Answer:
0 days: 4
1 day: 4
2 days: 5
3 days: 6
4 days: 6
5 days: 7
10 days: 10
15 days: 16
20 days: 30
25 days: 52
30 days: 79
Step-by-step explanation:
correct on edge
Answer:
a. mean = 820; standard deviation = 57.74
b.0.75 or 75%
Step-by-step explanation:
Lower limit (L) = 720
Upper limit (U) =920
a.The mean of an uniform distribution is given by:
The standard deviation of an uniform distribution is given by:
b. The probaility that X is less 870 is:
Answer:
$180
Step-by-step explanation:
step one 86+4 =90
step two 90×2=180
Answer:
-3, 9
Step-by-step explanation:
x^2 -6x - 27=
= x^2 - 9x + 3x - 27
= x(x - 9) + 3(x - 9)
= (x + 3)(x - 9)
x = -3, x = 9
Answer:
$99
Step-by-step explanation:
you spend 3/4 of $500 on clothes which is $375, you have $125 left. you then spend $20 on food which leaves you with $105, after purchasing the drinks ($3 + $3) you has $99 left.