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Radda [10]
2 years ago
15

Police response time to an emergency call is the difference between the time the call is first received by the dispatcher and th

e time a patrol car radios that it has arrived at the scene. Over a long period of time, it has been determined that the police response time has a normal distribution with a mean of 6.4 minutes and a standard deviation of 1.7 minutes. For a randomly received emergency call, find the following probabilities.
a) between 5 and 10 min.
b) less than 5 min.
c) more than 10 min.
Mathematics
1 answer:
valentina_108 [34]2 years ago
7 0

Answer:

c.

Step-by-step explanation:

srry

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Mandarinka [93]
Hi! The answer would be D. It is basically just asking for a whole number. 2.6 is a decimal, C is negative and a decimal. Hope this helped!
5 0
3 years ago
Please I need help it’s an emergency
Hunter-Best [27]

Answer:

A. 4\sqrt{6}

Step-by-step explanation:

Applying the leg rule which is:

\frac{Hypotenuse}{leg} = \frac{leg}{part}

Hypotenuse = 4 + 8 = 12

Leg = x

Part = 8

Plug in the values

\frac{12}{x} = \frac{x}{8}

Cross multiply

x*x = 8*12

x^2 = 96

\sqrt{x^2} = \sqrt{96}

x = \sqrt{16 * 6}

x = 4\sqrt{6}

6 0
3 years ago
What is the slope of this line? Please help someone, anyone.
Sphinxa [80]

For this case we have that by definition, the slope of a line is given by:

m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}}

Where:

(x_ {1}, y_ {1})and(x_ {2}, y_ {2})are two points through which the line passes.

According to the figure we have to, the line goes through:

(x_ {1}, y_ {1}) :( 0, -2)\\(x_ {2}, y_ {2}): (- 2,0)

Substituting we have:

m = \frac {0 - (- 2)} {- 2-0} = \frac {0 + 2} {- 2} = \frac {2} {- 2} = - 1

Thus, the slope of the line is -1.

Answer:

m = -1

4 0
3 years ago
Melinda will take 15 quizzes this semester. She would like to score a B or better on at least 90% of them. So far, she has gotte
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Answer:

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8 0
3 years ago
Read 2 more answers
The ratio between the number of red and green marbles in a box is 3:7. How many marbles are in the box if there are 20 fewer red
jeyben [28]

Answer:

50 marbles

Step-by-step explanation: The difference between the ratio of the red and green marbles is 4 units and the number value is 20 so its safe to say that 4 units is equal to 20 and thus one unit is 5 and because of the fact that there is a total of 10 units of marbles in the box according to the ratio, just multiply 5 and 10 which you get 50.

4 units = 20

1 unit = 20÷4 = 5

Total = 10 units

10 unit = 5 ×10 = 50

Ans : 50 marbles

3 0
3 years ago
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