A recipe has a ratio of 2 cups of dark soy sauce to 3 cups of light soy sauce. How many cups of dark soy sauce are there for eac
2 answers:
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Answer:
Step-by-step explanation:
Let X denote the first step
Let Y denote the second step
Then
E(X) = 0.2
E (Y) = 0.3
V (X) = 0.04
V (Y) = 0.09
Now,
E(X,Y) = E[X] + E{Y}
0.2 + 0.3 = 0.5
And since X and Y are independent
Therefore,
V(X , Y) = V(X) + V(Y)
= 0.04 + 0.09
= 0.13
Now required probability is
= Φ(-1.24)
= 1 - Φ (1.24)
= 1 - 0.8925
= 0.1075
Answer:
Step-by-step explanation:
12x² + 17x -5 = 12x² + 20x - 3x - 5
= 4x(3x + 5) -(3x + 5)
= (3x + 5)(4x - 1)
6x² + 7x - 5 = 6x² + 10x - 3x - 5
= 2x(3x + 5) -(3x+5)
= (3x + 5)(2x - 1)