You are working in an air conditioning system. a roll of cylindrical cooper tubbing has an outside diameter 7/8 inches and an outside diameter of 3/4 inches. how much refrigerant can 12 feet of that tubing hold?

The tubing can hold 63.62 inches³ (cubic inches) of refrigerant.

Correct statement and question:

You are working in an air conditioning system. A roll of cylindrical cooper tubing has an outside diameter 7/8 inches and an inside diameter of 3/4 inches. How much refrigerant can 12 feet of that tubing hold?

Source:

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Step-by-step explanation:

For answering the question, we will work with the inside diameter, this way:

Diameter = 3/4 ⇒ radius = 3/4/2 = 3/8 = 0.375 inches

Height or length of the tubing = 12 feet = 12 * 12 = 144 inches

Volume of a cylinder = π * r² * h

Substituting with the real values, we have:

Volume of the tubing = 3.1416 * 0.375² * 144

Volume of the tubing = 3.1416 * 0.140625 * 144

Volume of the tubing = 63.62 inches³ (rounding to two decimal places)

do your own work and don"t cheat.

step-by-step explanation:

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b