If both of those times were on the same date and in
the same time-zone, then exactly 1 hour passed.
Hello from MrBillDoesMath!
Answer:
x > -7/3
Discussion:
-3x + 8 < 15 => add 3x to both sides
(-3x + 3x) + 8 < 15 + 3x => (-3x + 3x) = 0
8 < 15 + 3x => subtract 15 from both sides
8-15 < 3x => 8 - 15 = -7
-7 < 3x => divide both sides by 3
-7/3 < x
Thank You,
MrB
Responder:
1,625; 0.8569
Explicación paso a paso:
y ___0 ____ 1 ____ 2 ____3
P (y) _1 / 8 ___ ¼ ___ ½ ____ 1/8
Valor esperado (E (x)): Σx * p (x)
= (0 * (1/8)) + (1 * (1/4)) + (2 * (1/2)) + (3 * (1/8)) = 1,625
La desviación estándar = sqrt (Var (x))
Var (X) = Σx²p (x) * E (x) ²
Var (X) = [(0 ^ 2 * (1/8)) + (1 ^ 2 * (1/4)) + (2 ^ 2 * (1/2)) + (3 ^ 2 * (1 / 8))] - 1.625²
Var (X) = (0 * (1/8)) + (1 * (1/4)) + (4 * (1/2)) + (9 * (1/8)) - 1.625 ^ 2
= 3.375 - 2.640625
= 0,734375
Desviación estándar = Sqrt (0,734375) = 0,8569
Step-by-step explanation:
I think both 3 and 9
D options
Answer:
C. His answer is correct because 12 + 1 = 13 and 15 + 10 = 25.
Step-by-step explanation:
