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asambeis [7]
3 years ago
10

A hospital has three emergency power generators that operate when there is a power outage. the probability that a generator fail

s to operate is 0.2 and the three generators are independent. what is the probability that none of the generators operate properly during a power outage
Mathematics
1 answer:
My name is Ann [436]3 years ago
6 0
The probability that none of the generators operate properly during a power outage is 0.008

There are 3 generators in total that does are not independent and a probability of 0.2 that a generator will fail to operate. 

In this case, we will raise the given probability of 0.2 to the power of 3 to find the answer.

Look at the given solution below:

.2^3 = 0.008
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crimeas [40]

Answer:

(10, –1)

Step-by-step explanation:

[1]XXXX3y=−12x+2

[2]XXXXy=−x+9

While it is not technically necessary, I find it easier to clear the fractions before actually beginning; so multiplying [1] by 2

[3]XXXX6y=−x+4

Substituting (from [2]) (−x+9) for y in [3]

[4]XXXX6(−x+9)=−x+4

Simplifying

[5]XXXX−6x+54=−x+4

[6]XXXX5x=50

[7]XXXXx=10

Substituting (from [7]) 10 for x in [2]

[8]XXXXy=−10+9=−1

7 0
3 years ago
Which shows a graph of a linear equation in standard form Ax + By = C, where A = 0, B is positive, and C is negative? A coordina
il63 [147K]

Answer:

A coordinate plane with a horizontal line passing through (negative 4, negative 3), (0, negative 3) and (4, negative 3).

Step-by-step explanation:

Ax + By = C, where A = 0, B is positive, and C is negative

By= C or y= C/B which is negative

Since A is zero and C is negative, the line is parallel to x- axis and has negative value for y, so it is a horizontal line below zero

---------------

A coordinate plane with a vertical line passing through (1, negative 4), (1, 0) and (1, 4).

no, the line is horizontal

A coordinate plane with a vertical line passing through (negative 2, negative 4), (negative 2, 0) and (negative 2, 4).

no, the line is horizontal

A coordinate plane with a horizontal line passing through (negative 4, 4), (0, 4) and (negative 4, 4).

no, the y-values should be negative

A coordinate plane with a horizontal line passing through (negative 4, negative 3), (0, negative 3) and (4, negative 3).

yes, this is horizontal line below zero

8 0
3 years ago
HELLLLLPPPPPP
aleksley [76]
(3p, x+4) Is what I'm gonna go for.
8 0
4 years ago
Evaluate 2xy when x=30 and y=2
lara31 [8.8K]
Just plug in the values. 
2xy = 
2(30)(2) = 
60(2) = 
120 <--------------------------Answer
6 0
4 years ago
Read 2 more answers
[ Algebra 2 ]
svetlana [45]

see attached. i hope this helped

4 0
3 years ago
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