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RUDIKE [14]
3 years ago
9

Calls to a customer service center last on average 1.4 minutes with a standard deviation of 1.7 minutes. An operator in the call

center is required to answer 52 calls each day. Assume the call times are independent. What is the expected total amount of time in minutes the operator will spend on the calls each day
Mathematics
1 answer:
igomit [66]3 years ago
8 0

Answer:

the expected total amount of time in minutes is 88.4

Step-by-step explanation:

The computation of the expected total amount of time in minutes is given below:

= Standard deviation × needed to answer calls each day

= 1.7 × 52

= 88.4

hence, the expected total amount of time in minutes is 88.4

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5 less than the square of a number
yanalaym [24]

x^2 - 5 this will be the equation formed.

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An exponent is the number of times a number is multiplied by itself. For example, 2 to the third (written as 23) means: 2 x 2 x 2 = 8. 23 is not the same as 2 x 3 = 6. Remember that a number raised to the power of one is itself.

<h3>Calculation </h3>

let the number be x

x^2 - 5 this will be the equation formed

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6 0
11 months ago
While visiting Wallawulla State​ Park, Joe approximated the angle of elevation to the top of a mound to be 40 degrees . After wa
katen-ka-za [31]

Answer:

Height of mound = 794 ft

Step-by-step explanation:

To illustrate the angle of elevation and distance, i have drawn it and attached below.

Now, from my diagram;

h = the height of the mound

At his first point of his trip to the foot of the mound, the angle of elevation is 40°, while the horizontal distance to the foot of the mound is "X"

So, by triangle definition,

tan(40°) = h/x

And so;

h = x tan40

h = 0.8391x  - - - - (eq 1)

At his second point of the trip to the foot of the mound, Joe is now,

"(x - 450) ft" from the foot of the mound.

Thus, his angle of elevation is 40 + 18 = 58°.

So, by triangle definition,

tan(58°) = h/(x - 450)

h = (x - 450)•(tan(58°))

h = 1.6003(x - 450)

h = 1.6003x - 720.135   - - - - -(eq2)

To get the height(h) of the mound, let's equate (eq1) to (eq2).

0.8391x = 1.6003x - 720.135

1.6003x - 0.8391x = 720.135

0.7612x = 720.135

x = 720.135/0.7612

x = 946.0523 ft

Let's put this value for x in eq (1);

h = 0.8391 x 946.0523 = 793.83 ft ≈ 794ft

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3 years ago
What is the percentage chance of a solution 150 g active ingredient in a total of 1000 mL of solution
Andrej [43]

Answer:6.6666666667

Step-by-step explanation:just divided it

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3 years ago
Under his cell phone plan, Oliver pays a flat cost of $49 per month and $5 per gigabyte. He wants to keep his bill at $73.50 per
nordsb [41]
Four gigabytes (4.9)

$73.5-$49=$24.5
$24.5/$5 =4.9
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2 years ago
What is the product of any number, x, multiplied by 1? explain how you know
Sav [38]
It would be still be X. Any number times 1 is that number. For example 3x1=3 and 325x1=325 :)
5 0
3 years ago
Read 2 more answers
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