Answer:
0.917915
Step-by-step explanation:
Exponential distribution is expressed as it follows
F (y,λ) = 1 – e ^(- λ(y)
)
Where λ is equal to 1/ population mean
So λ = 1/2.8 = 0.357
Let y be the length of time a costumer wait on hold
Now, let´s find the value for y = 7 minutes, which is the proportion of costumer that wait on hold
P (y<7) = 1 – e^(- .357*(7)
)
P (y<7) = 0.917915
Answer:
Step-by-step explanation: plug -18 for the "x" and solve. -18-10 equals -28
X^2 + 4x - 12
= (x +6)(x - 2)
answer
D. (x +6)(x - 2)
Answer:
x = 2 or 1/4
Step-by-step explanation:
by solving it we get ;
=》
![4 {x}^{2} - 9x + 2 = 0](https://tex.z-dn.net/?f=4%20%7Bx%7D%5E%7B2%7D%20%20-%209x%20%2B%202%20%3D%200)
=》
![4 {x}^{2} - 8x - x + 2](https://tex.z-dn.net/?f=4%20%7Bx%7D%5E%7B2%7D%20%20-%208x%20-%20x%20%2B%202)
=》
![4x(x - 2) - 1(x - 2)](https://tex.z-dn.net/?f=4x%28x%20-%202%29%20%20-%201%28x%20-%202%29)
=》
![(4x - 1)(x - 2)](https://tex.z-dn.net/?f=%284x%20-%201%29%28x%20-%202%29)
so,
![x = 2 \: \: or \: \: \frac{1}{4}](https://tex.z-dn.net/?f=x%20%3D%202%20%5C%3A%20%5C%3A%20%20or%20%20%5C%3A%20%20%5C%3A%20%5Cfrac%7B1%7D%7B4%7D%20)
<em>i</em><em> </em><em>hope</em><em> </em><em>it</em><em> </em><em>helped</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
Answer:
Extra 4 cups to make up 11 cups a day
Step-by-step explanation:
Here we have that Jan obtains 15% of her fluid needs from food, therefore, she gets the remaining 85 % from drinking water
If the recommended daily intake = 2.7 liters or 91.3 oz
And she already consumes 48 oz of water and 16 oz of milk
Note milk is equivalent to 0.87 water therefore total intake = 48 + 16*0.87= 61.92 oz
She needs to take additional (91.3 - 61.92) = 29.4 oz or 3.68 ≈ 4 cups extra to meet her recommended daily dosage.