subject
Mathematics, 20.03.2020 20:15 Bradgarner772

The temperature at any random location in a kiln used for manufacturing bricks is Normally distributed with a mean of 1000°F and a standard deviation of 50°F.
If bricks are fired at a temperature above 1125°F, they will crack and must be discarded. If the bricks are placed randomly throughout the kiln, what is the percentage of bricks that crack during the firing process?

A. 0.62%
B. 2.28%
C. 47.72%
D. 49.38%

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 14:00
You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣
Answers: 2
question
Mathematics, 21.06.2019 17:00
What is the area of the trapezoid shown ?
Answers: 1
question
Mathematics, 21.06.2019 18:30
This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤
Answers: 2
question
Mathematics, 21.06.2019 19:00
Ineed to know the answer to this algebra question.
Answers: 1
You know the right answer?
The temperature at any random location in a kiln used for manufacturing bricks is Normally distribut...
Questions
question
History, 08.06.2021 14:00
Questions on the website: 13722363