Question 13
II Pause
Q Zoom
Q Review / Fin
ABC
Question 13
A photogra...
Mathematics, 29.10.2020 21:00 marchellamazz123
Question 13
II Pause
Q Zoom
Q Review / Fin
ABC
Question 13
A photographer needs $4000 to purchase a printer for her new business. Each photo that she prints will cost an additional $3.56 for ink. She plans on selling each photo for $9.99 each.
Which of the following equations represents the profit, P(x), the photographer will make for each photo, x, that she sells?
P(x) = 6.43x + 4000
A
B
P(x) = 6.43x - 4000
С
P(x) = 13.55x + 4000
D
P(x) = 13.55x - 4000
Answers: 1
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Answers: 2
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Answers: 3
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Answers: 3
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Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
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