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allochka39001 [22]
3 years ago
10

Assume you still have 9 customers to call today and you have an hour and a half until your next break (90 minutes). To get the c

alls done in time you would need your sample average of these 9 customers to be 10 minutes. What is the z-score for this
Mathematics
1 answer:
mojhsa [17]3 years ago
5 0

Answer:

umm..

Step-by-step explanation:

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Carlos solved the system of equations below. What mistake did he make in his work? (5 points)
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Ele não distribuiu corretamente

Step-by-step explanation:


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3 years ago
You are planning to make an open rectangular box from aa 4141​-in.-by-8181​-in. piece of cardboard by cutting congruent squares
marissa [1.9K]

Answer:

13058.83 cubic inches

Step-by-step explanation:

Given that a rectangular box is having dimensions as 41x81 inches.

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The open box made would have height as x and length 41-2x with width 81-2x

Volume =

V(x) = x(41-2x)(81-2x)\\V(x) =x(3321-244x+4x^2)\\V(x) = 3321x-244x^2+4x^3\\V'(x) = 3321-488x+12x^2\\V"(x) = -488+24x\\

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3 years ago
Each week, Rosario drives to an ice-skating rink that is 60 miles away. The round-trip takes 2. 75 hours. If he averages 55 mile
mart [117]

Rosario's average speed on her way home is 36.66 miles per hour.

<h2><u></u></h2><h2><u>Average speed</u></h2>

Given that each week, Rosario drives to an ice-skating rink that is 60 miles away, and the round-trip takes 2.75 hours, to determine, if she averages 55 miles per hour on his way to the rink, what is her average speed to return to his house, the following calculation must be made:

  • 55 = 1
  • 60 = X
  • 60 / 55 = X
  • 1.09 = X
  • 2.75 - 1.09 = 1.66
  • 55 = 1
  • 27.5 = 2
  • 55 / 3 x 2 = 36.66

Therefore, Rosario's average speed on her way home is 36.66 miles per hour.

Learn more about averages in brainly.com/question/12322912

4 0
2 years ago
Read 2 more answers
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