One company buys a bulldozer for $150000. The company depreciates the bulldozer linearly over its useful 15 years. Its salvage value at the end of year is 78000. Express the value of the bulldozer, V, as a function of how years old it is, t.

the value of the bulldozer after a years is $

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12