From a 150-foot observation tower on the coast, a coast guard officer sights a boat in difficulty. imagine a
triangle, with the three sides being the tower, the surface of the water, and the line of sight from the officer to
the boat. the angle at the top of the tower is 140. how far is the boat from the shoreline (to the nearest
thousandth of a foot)?

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.

agree

step-by-step explanation:

show da graph

step-by-step explanation:

(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.