, 24.01.2020GalleTF

# Atrain that is one mile long starts through a tunnel that is also 1 mile long if the train is traveling at 15 miles mph how long will it take for the train to get out of the tunnel

(a) {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …}

(b) \$59 398

step-by-step explanation:

(a) the annual sequence of profits

aₙ = a₁rⁿ⁻¹

the model for the sequence of profits is {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …} .

(b) profit after 15 yr

a₁ = \$ 30 000

r = 1.05

a₁₅ = 30 000 × 1.05¹⁴

a₁₅ = 30 000 × 1.979 93

a₁₅ = \$59 398

the profit in year 15 will be \$59 398.

the answer i believe is 27 units.

step-by-step explanation:

~coco

step-by-step explanation:

You would have to multiply all of the numbers

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