Mathematics, 12.10.2020 14:01 mommytobe2019
A sound engineer uses a cardioid microphone to record a musical performance. The microphone records sounds according to the equation r = 12 + 12sin(θ), where r is measured in meters.
What does the sum of the constant, 12, and the coefficient, 12, in the equation represent?
a) The maximum possible distance between the performer and microphone
b) The minimum possible distance between the performer and microphone
c) One half the maximum possible distance between the performer and microphone
d) One half the minimum possible distance between the performer and microphone
Answers: 2
Mathematics, 21.06.2019 17:00
Consider the function represented by the equation 1/2 j + 1/4 k equals 3 which shows the equation written in function notation with j as the independent variable
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Mathematics, 21.06.2019 19:40
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
Mathematics, 21.06.2019 21:30
The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet
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A sound engineer uses a cardioid microphone to record a musical performance. The microphone records...
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