A decibel is a unit that measures the loudness of a sound. The larger the number of decibels, the louder the sound. The Occupational Safety and Health Administration (OSHA) has limits of exposure for different sound levels, as seen in the table below: Sound Level Maximum Allowed Duration
(decibels) [left] per Work Day (hours) [right]

90 | 8

92 | 6

95 | 4

100 | 2

105 | 1

110 | 0.5

115 | 0.25

Suppose a manager wants to know how long a worker can be exposed to a sound level of 120 decibels. Find a line of best fit. Describe how well it fits the data and whether it can make a good prediction for the manager.

1696 hundred thousand

step-by-step explanation:

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.

it is x=-4

step-by-step explanation: